Depends on whether you are trying to HQ or not. If you are trying to HQ, there are plenty of times when you stack buff and you would rather Tricks of the Trade because you can't Touch yet (still stacking more buff). It's a free 20 CP at those time. At other time you would want Good condition to hit Touch for quality. Excellent is even better but there's no ability to manipulate that condition (personally my record is 1314 Quality in one Touch (Byregot's Blessing) on Rosegold Nugget which is 1 star lvl 50).
Careful Synthesis is better than Steady Hand. Careful Synthesis cost 0 CP. If you are determined enough you could get Careful Synthesis II which is even more awesome. Steady Hand is when you want to use Quality touch but scared they fail (70%/80%/90%) or Rapid Touch (50%).
All in all, crafting is more situational and calculation rather than one static method.