From extensive youtube studies (!) spin training seems to require the student to both enter the spin and recover. Would it not make sense to include a session where an instructor puts it into a spin and asks the student to rescue it? Wouldn't that better teach the student to respond to an unexpected event? Especially as I guess that you quickly learn that if you entered a spin by shoving down your left foot, you need your right boot to recover, thus short cutting a key bit of the problem solving ?