Quote Originally Posted by Estellios View Post
For which recipes use Craftsmanship or Magic Craftsmanship it's easy... just use one set like 2-3 times with a synth and switch sets and try it again. One set will be obviously easier and its success actions will more often reach the maximum potency. It looks like items within the same "family" use the same stat so for example, if you find out what stat a Bronze Pelta uses then all Peltas use that stat.
That would be nowhere near large enough a sample size. From one synth to the next, with absolutely nothing else (other than in-game time) changing, I've gone from failing at 20% progress to succeeding at 75 durability left. The RNG in this game is so absurdly dominating as to make testing nigh-useless for some things. At the very least, you'd need a significantly higher sample size to throw off the random factor.