Let me rephrase a few things, when I said mentor..they would be a rider that the club members consider experienced, they all have been in your shoes and your friends, so they know to make a little pointer in a suttle way without making you feel like your in school. beside most aren't riding educators just riders wanting to see other riders wether new or returning riders feel good on the saddle, and to succeed with thier goal. Possibly they could just stop by for a moment, not stay I wouldn't ask that of someone myself either.
Shoot just find a motorcycle cop ask him/her to stop by and give you a few pointers..I have done this before and they love to show off.
But I get what you say about practicing, I still practice quite often in parking lots and I don't like anyone around...I like to practice real tight turns, and real slow and straight line braking. I have a hard time doing these when I am being watched at rally's so I have to practice often. And yes I have dropped my bike and yes I have picked that giant Moose up...LOL. but since she has crash bars thats what she landed on. (mind you cover crash bar with pipe cover the kind you put on Hot water heater so they dont get scratched...learned that from the LEO he was cool with all his advice.)
P.S. I had one of those Mom's NOTHING was ever good enough.
