If I were to make changes to specialization, I would remove much of the rng factor that plagues the abilities. The whole point of specialization should be to make it easier for you to craft stuff from your trade compared to a non-specialist... even if they are an "omni-crafter" and you are not. For specialization to mitigate the need for omni-craft leveling, the skills it provides need to compete with cross class skills from other crafts. Its ok if the specialist skills end up making some omni-craft skills redundant because the idea is that if you're a specialist you're better at what you do with your craft than someone who isn't... even if you dont level the other crafting classes.

Here's a few changes I'd make:

* Whistle While You Work should just be a plain buff of some sort. Not this weird "buffs certain skills when quality is good or excellent and stack is at a multiple of whatever" nonsense. My head spins just reading that friggin tooltip. WWYW should be as simple as a slightly better Comfort Zone. have it cost 60CP and restore 9CP per step. Rng heaped on to rng does nothing to help someone who doesnt want to level every craft and WWYW as it is, is just a poorly thought out idea.

* Innovative Touch should have a 70% chance of success so its guaranteed to work when coupled with Steady hand II. If it worked like this it would be a better alternative to Innovation for omni-crafters and a replacement for Innovation for single-classed crafters.

* Nymeia's Wheel should simply be a super cheap version of Manipulation. It would serve as an upgrade to Manipulation for omni-crafters, and a replacement for Manipulation for single classed-crafters.

* Byregot's Miracle is decidedly inferior to Byregot's Blessing when it SHOULD be better. Byregot's Miracle should do exactly what Byregot's Blessing does but at 100% success rate, and use up no durability. Again it gives access to one of the best cross-class skills to single-classed crafters and still offers an upgrade to omni-crafters when using their specialist craft.

* Trained Hand is again inferior to another skill that is often cross-classed with a ridiculous rng component thrown in for the lawls. Trained Hand should be a better version of Careful Synthesis II. It should have Efficiency: 150% Success Rate: 100% and cost 0CP.

Those changes would make specializations actually GOOD and also give single-classed crafters good versions of some of the desirable cross-class skills.