Remove specialist recipes, and give specialists extra stats on craft/control/cp. Remove the need for delineations to use Heart of the X, instead make it a buff turned on at all times for specialists.

In fact, I think the best way to give specialists stat buffs is to buff their specific craft/control/cp to match the max-melded stats their class-specific gear could offer, without any melds. This would give specialists an early edge in crafting the latest items once they've geared up in the class-specific gear, and the catch-up patches can later provide artisan-style gear that all crafters can wear to match those stats when max-melded.