[okie]

A couple of keys to a piston-style, or push basic stroke is to pre-set the right shoulder down plane for a precision follow through and keep said shoulder motionless. It is a hitting stroke so the right shoulder serves as a backstop for the straightening right elbow. I had very little success with the push basic stroke because I could not control the pace of my putts very well...until Yoda taught me (Alignment Golf) to pre-set the right shoulder further down plane in order to achieve a "deeper" follow through and visa versa on shorter putts etc.