How would you change Specialization?

[Solarra]

Oh I'm very aware of how few people realise how good they are. One other person saying they don't make a difference doesn't do a thing to change my experience with it. And that's having all specialists, and crafting gear for scrips for quite a while on the same gear with characters that had the specialisation, and the ones that don't. It's actually kind of baffling how underestimated they are.

It's not quite clear from your post but I have to say, if you have all the Cross Class skills available but you prefer the specialist Skills, then I'm baffled. I don't see anything better about them at all.
I do appreciate they are useful for people who have only levelled 2 or 3 crafting Classes, but I still think the present system leaves those players at a considerable disadvantage compared to an omni-crafter. Given the choice between my Specialists getting access to all the cross class skills or getting the present specialist skills (even tweaked slightly), I'd definitely take the former.
It's a simple, elegant solution to the problem of people not wanting to level every crafting class but still wanting to do endgame crafting.

[Khalithar]

The changes I'd make are a lot simpler than you might think.

1. Remove specialist lockout on recipes.
2. Drastically increase the price needed to change specialties and add a significant lockout timer.

From there I'd just change it so the only advantage of being a specialist would be a drastically reduced difficulty in HQing items for that particular craft.