Parelli tosses out the classical three-point seat (crotch & both seatbones) in favor of the "balance point", which is one point only, situated somewhere between the seatbones. Parelli also teaches flexing one's spine convexly backwards whilst riding, which tips the pelvis backwards, which is against classical riding, and slanting one's shoulders in certain movements, which is also anti-classical, and says nothing about the classical position of vertical ear-shoulder-hip-heel alignment. How, then, does a classical horseman such as Sir Zettl teach Parelli's? I know of no explanation from Parelli's; perhaps someone here can help me to understand this apparent contradiction. Thanks!