First, I'm a huge Stacy Westfall fan as well. Have you guys seen the Ellen show that she was on? Hilarious seeing Ellen on a reining horse!
Second, what have you instructors found to be helpful in your teaching? I think we've covered the potential behind lunge-line lessons, Vaulting, no-stirrup work. What else do you guys do to help your students?
A big one I have found for helping students sit the trot is relaxation techniques, for lack of a batter word. I guess that's just what I call it. I think I learned it in a Yoga class in college? Forgive me if this is a common technique in riding, I was never taught it in a riding setting. Basically, I lunge the student and starting from the top down, we isolate body parts. I tell them to inhale as the flex or scrunch that body part, and then relax it as they exhale. We do that top to bottom a couple times, and then we do the whole body flex and whole body relax. I have seen it transform bouncy riders into fluid equestrians. I think kids don't even realize they are tensing their muscles and that is the cause for their bouncing around in the saddle.