Hasty Touch ... 50% chance of success.
Basic Touch ... 70% chance of success.
Standard Touch ... 80% chance of success.
Advanced Touch ... 90% chance of success.

Anyone with a brain tries to keep Steady Hand, or better yet, Steady Hand 2, up whenever they are adding Quality. With Steady Hand, any Touch that was 80% or higher base chance of success will never fail. With Steady Hand 2, the only Touch that can fail is Hasty.

With the way that Poor halves the Quality gain that turn, Normal keeps it at 100%, Good raises it to 150%, and Excellent raises it to about 400% ... asking to be able to Excellent on demand is asking a heck of a lot. I'm not even working 1 star recipes, and I know *that* much.