diff --git a/README.md b/README.md
index 76af837..9b78a01 100644
--- a/README.md
+++ b/README.md
@@ -46,9 +46,8 @@ The most advanced auction house addOn for the 1.12 client with some features mor
 ### Tooltip
 **/aux tooltip value**<br/>
 **/aux tooltip daily**<br/>
-**/aux tooltip disenchant distribution**<br/>
 **/aux tooltip disenchant value**<br/>
-**/aux tooltip disenchant source**<br/>
+**/aux tooltip disenchant distribution**<br/>
 **/aux tooltip vendor buy**<br/>
 **/aux tooltip vendor sell**<br/>
 
diff --git a/core/cache.lua b/core/cache.lua
index 26d7a0d..af9a116 100644
--- a/core/cache.lua
+++ b/core/cache.lua
@@ -12,11 +12,11 @@ local MAX_ITEM_ID = 30000
 local items_schema = {'tuple', '#', {name='string'}, {quality='number'}, {level='number'}, {class='string'}, {subclass='string'}, {slot='string'}, {max_stack='number'}, {texture='string'}}
 local merchant_buy_schema = {'tuple', '#', {unit_price='number'}, {limited='boolean'}}
 
-_G.aux_items = T
-_G.aux_item_ids = T
-_G.aux_auctionable_items = T
-_G.aux_merchant_buy = T
-_G.aux_merchant_sell = T
+_G.aux_items = {}
+_G.aux_item_ids = {}
+_G.aux_auctionable_items = {}
+_G.aux_merchant_buy = {}
+_G.aux_merchant_sell = {}
 
 function LOAD()
 	scan_wdb()
diff --git a/core/disenchant.lua b/core/disenchant.lua
index 10e5724..7536512 100644
--- a/core/disenchant.lua
+++ b/core/disenchant.lua
@@ -7,42 +7,6 @@ local history = require 'aux.core.history'
 
 local UNCOMMON, RARE, EPIC = 2, 3, 4
 
-do
-	local data = O(
-		10940, A('DUST', '1-20'),
-		11083, A('DUST', '21-30'),
-		11137, A('DUST', '31-40'),
-		11176, A('DUST', '41-50'),
-		16204, A('DUST', '51-60'),
-
-		10938, A('ESSENCE', '1-10'),
-		10939, A('ESSENCE', '11-15'),
-		10998, A('ESSENCE', '16-20'),
-		11082, A('ESSENCE', '21-25'),
-		11134, A('ESSENCE', '26-30'),
-		11135, A('ESSENCE', '31-35'),
-		11174, A('ESSENCE', '36-40'),
-		11175, A('ESSENCE', '41-45'),
-		16202, A('ESSENCE', '46-50'),
-		16203, A('ESSENCE', '51-60'),
-
-		10978, A('SHARD', '1-20'),
-		11084, A('SHARD', '21-25'),
-		11138, A('SHARD', '26-30'),
-		11139, A('SHARD', '31-35'),
-		11177, A('SHARD', '36-40'),
-		11178, A('SHARD', '41-45'),
-		14343, A('SHARD', '46-50'),
-		14344, A('SHARD', '51-60'),
-
-		20725, A('CRYSTAL', '51+')
-	)
-
-	function M.source(item_id)
-	    return unpack(data[item_id] or empty)
-	end
-end
-
 local ARMOR = S(
 	'INVTYPE_HEAD',
 	'INVTYPE_NECK',
diff --git a/core/history.lua b/core/history.lua
index ff4a1ef..fcef5ad 100644
--- a/core/history.lua
+++ b/core/history.lua
@@ -7,7 +7,7 @@ local persistence = require 'aux.util.persistence'
 
 local history_schema = {'tuple', '#', {next_push='number'}, {daily_min_buyout='number'}, {data_points={'list', ';', {'tuple', '@', {value='number'}, {time='number'}}}}}
 
-local value_cache = T
+local value_cache = {}
 
 do
 	local cache
diff --git a/core/scan.lua b/core/scan.lua
index 2affea0..68d265f 100644
--- a/core/scan.lua
+++ b/core/scan.lua
@@ -9,7 +9,7 @@ local history = require 'aux.core.history'
 local PAGE_SIZE = 50
 
 do
-	local scan_states = T
+	local scan_states = {}
 
 	function M.start(params)
 		local old_state = scan_states[params.type]
diff --git a/core/slash.lua b/core/slash.lua
index 5571423..6e07568 100644
--- a/core/slash.lua
+++ b/core/slash.lua
@@ -1,6 +1,5 @@
 module 'aux.core.slash'
 
-include 'T'
 include 'aux'
 
 local cache = require 'aux.core.cache'
@@ -44,13 +43,10 @@ function SlashCmdList.AUX(command)
     elseif arguments[1] == 'tooltip' and arguments[2] == 'disenchant' and arguments[3] == 'distribution' then
 	    _G.aux_tooltip_disenchant_distribution = not aux_tooltip_disenchant_distribution
         print('tooltip disenchant distribution ' .. status(aux_tooltip_disenchant_distribution))
-    elseif arguments[1] == 'tooltip' and arguments[2] == 'disenchant' and arguments[3] == 'source' then
-	    _G.aux_tooltip_disenchant_source = not aux_tooltip_disenchant_source
-        print('tooltip disenchant source ' .. status(aux_tooltip_disenchant_source))
     elseif arguments[1] == 'clear' and arguments[2] == 'item' and arguments[3] == 'cache' then
-	    _G.aux_items = T
-	    _G.aux_item_ids = T
-	    _G.aux_auctionable_items = T
+	    _G.aux_items = {}
+	    _G.aux_item_ids = {}
+	    _G.aux_auctionable_items = {}
         print('Item cache cleared.')
     elseif arguments[1] == 'populate' and arguments[2] == 'wdb' then
 	    cache.populate_wdb()
@@ -65,7 +61,6 @@ function SlashCmdList.AUX(command)
 		print('- tooltip vendor sell [' .. status(aux_tooltip_merchant_sell) .. ']')
 		print('- tooltip disenchant value [' .. status(aux_tooltip_disenchant_value) .. ']')
 		print('- tooltip disenchant distribution [' .. status(aux_tooltip_disenchant_distribution) .. ']')
-		print('- tooltip disenchant source [' .. status(aux_tooltip_disenchant_source) .. ']')
 		print('- clear item cache')
 		print('- populate wdb')
     end
diff --git a/core/tooltip.lua b/core/tooltip.lua
index aa0041a..67fb3a8 100644
--- a/core/tooltip.lua
+++ b/core/tooltip.lua
@@ -14,7 +14,7 @@ local UNKNOWN = GRAY_FONT_COLOR_CODE .. '?' .. FONT_COLOR_CODE_CLOSE
 
 _G.aux_tooltip_value = true
 
-local game_tooltip_hooks, game_tooltip_money = T, 0
+local game_tooltip_hooks, game_tooltip_money = {}, 0
 
 function LOAD()
 	do
@@ -55,19 +55,6 @@ end
 function M.extend_tooltip(tooltip, link, quantity)
     local item_id, suffix_id = info.parse_link(link)
     quantity = IsShiftKeyDown() and quantity or 1
-    if aux_tooltip_disenchant_source then
-        local r, g, b = color.tooltip.disenchant.source()
-        local type, range = disenchant.source(item_id)
-        if type == 'CRYSTAL' then
-            tooltip:AddLine(format('Can disenchant from level %s |cffa335eeEpic|r and |cff0070ddRare|r items.', range), r, g, b, true)
-        elseif type == 'SHARD' then
-            tooltip:AddLine(format('Can disenchant from level %s |cff0070ddRare|r and |cff1eff00Uncommon|r items.', range), r, g, b, true)
-        elseif type == 'ESSENCE' then
-            tooltip:AddLine(format('Can disenchant from level %s |cff1eff00Uncommon|r items.', range), r, g, b, true)
-        elseif type == 'DUST' then
-            tooltip:AddLine(format('Can disenchant from level %s |cff1eff00Uncommon|r items.', range), r, g, b, true)
-        end
-    end
     local item_info = temp-info.item(item_id)
     if item_info then
         local distribution = disenchant.distribution(item_info.slot, item_info.quality, item_info.level)
diff --git a/gui/core.lua b/gui/core.lua
index a72c7fd..f91f724 100644
--- a/gui/core.lua
+++ b/gui/core.lua
@@ -315,7 +315,7 @@ function M.editbox(parent)
 	    do (this.focus_loss or nop)() end
     end)
     editbox:SetScript('OnTextChanged', function()
-	    this.overlay:SetText((this.formatter or id)(this:GetText()))
+	    this.overlay:SetText(this.formatter and this.formatter(this:GetText()) or this:GetText())
 	    do (this.change or nop)() end
     end)
     editbox:SetScript('OnChar', function() (this.char or nop)() end)
diff --git a/libs/T.lua b/libs/T.lua
index 13f212c..abf66f6 100644
--- a/libs/T.lua
+++ b/libs/T.lua
@@ -84,7 +84,7 @@ do
 	end
 	code = code .. [[
 		overflow)
-		if overflow ~= nil then error("Vararg overflow.") end
+		if overflow ~= nil then error("T-vararg overflow.", 2) end
 		local n = 0
 		repeat
 	]]
diff --git a/libs/module.lua b/libs/module.lua
index 793410a..3360ceb 100644
--- a/libs/module.lua
+++ b/libs/module.lua
@@ -1,12 +1,11 @@
 if module then return end
 local strfind, type, setmetatable, setfenv, _G = strfind, type, setmetatable, setfenv, getfenv(0)
-local error, nop, id, define, include, create_module, nop_default_mt, public_modifier_mt, proxy_mt
+local error, nop, define, include, create_module, nop_default_mt, public_modifier_mt, proxy_mt
 local loaded, defined, interfaces, environments = {}, {}, {}, {}
 
+function nop() end
 function error(msg, ...) return _G.error(format(msg or '', unpack(arg)) .. '\n' .. debugstack(), 0) end
 
-nop, id = function() end, function(v) return v end
-
 function define(self, k, v, private)
 	if type(k) ~= 'string' or not strfind(k, '^[_%a][_%w]*') then error('Invalid identifier "%s".', k) end
 	local _, _, prefix, suffix = strfind(k, '^(.?.?.?.?)([_%a].*)')
@@ -43,7 +42,7 @@ function create_module(name)
 	accessors = {M=function() return public_modifier end}
 	mutators = setmetatable({_=nop}, {__index=function(_, k) return function(v) define(name, k, v, true) end end})
 	fields = setmetatable(
-		{_M=environment, _G=_G, include=function(interface) include(name, interface) end, error=error, nop=nop, id=id},
+		{_M=environment, _G=_G, include=function(interface) include(name, interface) end, nop=nop},
 		{__index=function(_, k) local accessor = accessors[k]; if accessor then return accessor() else return _G[k] end end}
 	)
 	public_accessors = setmetatable({}, nop_default_mt)
@@ -52,7 +51,7 @@ function create_module(name)
 	setmetatable(environment, proxy_mt(fields, mutators))
 	setmetatable(interface, proxy_mt(public_fields, public_mutators))
 	P = {
-		defined = {['-_M']=true, ['-_G']=true, ['-include']=true, ['-error']=true, ['-nop']=true, ['-id']=true, ['-M']=true, ['-set__']=true, ['-require']=true},
+		defined = {['-_M']=true, ['-_G']=true, ['-include']=true, ['-nop']=true, ['-M']=true, ['-set__']=true, ['-require']=true},
 		fields = fields, accessors = accessors, mutators = mutators,
 		public_fields = public_fields, public_accessors = public_accessors, public_mutators = public_mutators,
 	}
diff --git a/tabs/bids/core.lua b/tabs/bids/core.lua
index 051a6a4..675c277 100644
--- a/tabs/bids/core.lua
+++ b/tabs/bids/core.lua
@@ -9,7 +9,7 @@ local scan = require 'aux.core.scan'
 
 TAB 'Bids'
 
-auction_records = T
+auction_records = {}
 
 function OPEN()
     frame:Show()
diff --git a/tabs/search/filter.lua b/tabs/search/filter.lua
index f003d9f..445b462 100644
--- a/tabs/search/filter.lua
+++ b/tabs/search/filter.lua
@@ -5,7 +5,7 @@ local money = require 'aux.util.money'
 local cache = require 'aux.core.cache'
 local filter_util = require 'aux.util.filter'
 
-local post_filter = T
+local post_filter = {}
 local post_filter_index = 0
 
 function valid_level(str)
diff --git a/tabs/search/frame.lua b/tabs/search/frame.lua
index 6db7003..ee63d95 100644
--- a/tabs/search/frame.lua
+++ b/tabs/search/frame.lua
@@ -509,8 +509,8 @@ do
     filter_display = scroll_child
 end
 
-status_bars = T
-tables = T
+status_bars = {}
+tables = {}
 for _ = 1, 5 do
     local status_bar = gui.status_bar(frame)
     status_bar:SetAllPoints(status_bar_frame)
diff --git a/tabs/search/results.lua b/tabs/search/results.lua
index e94dba2..c63f26f 100644
--- a/tabs/search/results.lua
+++ b/tabs/search/results.lua
@@ -32,7 +32,7 @@ function update_real_time(enable)
 end
 
 do
-	local searches = T
+	local searches = {}
 	local search_index = 1
 
 	function get_current_search()
@@ -361,7 +361,7 @@ end
 
 do
 	local scan_id = 0
-	local IDLE, SEARCHING, FOUND = T, T, T
+	local IDLE, SEARCHING, FOUND = 1, 2, 3
 	local state = IDLE
 	local found_index
 
diff --git a/tabs/search/saved.lua b/tabs/search/saved.lua
index 8e4e014..5564d3c 100644
--- a/tabs/search/saved.lua
+++ b/tabs/search/saved.lua
@@ -3,8 +3,8 @@ module 'aux.tabs.search'
 local filter_util = require 'aux.util.filter'
 local gui = require 'aux.gui'
 
-_G.aux_favorite_searches = T
-_G.aux_recent_searches = T
+_G.aux_favorite_searches = {}
+_G.aux_recent_searches = {}
 
 function update_search_listings()
 	local favorite_search_rows = T
diff --git a/util/persistence.lua b/util/persistence.lua
index d4dc0b9..16ccf27 100644
--- a/util/persistence.lua
+++ b/util/persistence.lua
@@ -3,7 +3,7 @@ module 'aux.util.persistence'
 include 'T'
 include 'aux'
 
-_G.aux_datasets = T
+_G.aux_datasets = {}
 
 do
 	local dataset