SubMariner:The short answer: if you are going to get into drysuit diving, take the course from an Instructor acredited in the Specialty.
You need to learn the right way to dive dry, just not the way someone learned by trial & error. Especially since it can be more dangerous than simply "adjusting your learning curve"!
I was hoping that an instructor friend of mine (who is certified) could teach me, without going through all the paperwork and rigamarole required for the cert.
Y'know a couple hours in the pool, we'd flood the suit, invert me, show me how the valves work, practice bouyancy, etc.
I agree about learning the right way to dive dry, and not learning from someone's trial and error. Errors underwater are far less forgiving than errors on the surface.
Thanx for your concern,
- PolsVoice.