Hi, so far I have these skills:

All level 15 cross class skills
Steady Hand II
Careful synthesis II
Waste not II

That is the order of how I got them. Even with just weaver and carpenter at lvl 50, I was still able to HQ vanya gear. I just recently finished leatherworker and am planning on crafting some Hyppogriph gear soon.

I was thinking either GoldSmith's Innovation (for that great strides, innovation, Blessing combo), or Comfort zone because its so useful for the first step.

Before LeatherWorker and Waste Not II, I was able to HQ vanya silk maybe 30-40% of the time. I have not tried with waste not II yet. Even though I can HQ final vanya gear NP even with NQ silk, I was still hoping to ultimately make it so I can HQ 40 dur 2 star mats 80% + of time. This is the kind of synthesis I am looking for.

What is the next best lvl 50 skill / crafting class I should level next that will benefit or give me the most progress in ensuring 2 star HQ's?

Thanks for any advice.