The four sidehill lies effect the flight of the ball the same way the ball would roll on the ground, so if you are on a sidehill lie above the ball if you were to roll a ball in that direction it would roll off to the right and that is what your ball flight will do
Method teaching is a one swing fits all philosophy that teaches all players identical swings based on the assumption that this method is the perfect swing
Gripping the club too tightly is a fatal flaw in the golf swing, it creates tension in your arms and tightens your muscles and the one thing we know is that tense muscles do not work very fast, causing swing faults and destroying your distance