Engineering specialization

[Kilgraveii]

Hi,
In retail Classic, in order to min-max the proffesion, the best way was to learn gnomish spec, learn all the bop and then unlearn it and level it from 0 again with goblin.
Is this the same in Octowow? Or is it easier to change the specialization?

Thank you,

[Gildark]

Unfortunately it's the same.

[Kilgraveii]

Thank you for your reply!