I started jumping @ Perris, and recently graduated. The instructors are always pushing you to be better, smoother, and stronger. Not up your ass about it, but they make you want to be better. I found through my AFF classes I was my worst critic. They Gave me suggestions for the next dive and sat with me to watch the videos I got, to help me understand why, on my level 4 I was all over the sky. Needless to say my level 5, smooth like ice.
I am a tall thin guy, (6ft 5in, 150lbs)and I seem to not quite fall as fast as your avarage feather, but the instructors would keep even with me (before I knew how to keep up with them) and when I landed there was no mention of how hard it is for a 5'4" 225 lb instructor to go that slow. untill my level 5, I landed and heard "Gawd Damnit Slim!!!! you just don't fall!!!!"