I see a dilemma.
The article referenced by Centaurus makes a valid point.
However, the advice not to rush a feathering drill is also correct, and written in blood.
So, will you teach inexperienced pilots to do drills quickly, or methodically? In my experience, you can't teach both, even if you stipulate the different scenarios applicable. The brain doesn't work that way.
Given the accident rate and the type of accidents commonly experienced in GA, it seems to me that doing emergency drills methodically and diligently is the way to save lives.
That article can then be a discussion point (as Centaurus intends, I'm sure!) for commercial pilots who would like to expand their existing toolbox of life saving tricks.