The trail arm, the right arm for the right handed golfer, is always exerting a downward and onplane push. Picture good ole Grandpa using his right arm to pat the top of 6 year old Johnny's head. This extention of the right arm is held in check by the inert left arm--"checkrein" action. The left thumb may feel the pull of this right arm extensor action, specifically the heel section of the right hand will be pushing downward against the left thumb.
Threaded Mode
