[EdZ]

A drill to help you feel that right shoulder going down plane...


in a golf posture, no club - make a fist with your left hand and point your thumb to your right, away from the target

grip your left thumb with your right hand from underneath (your right palm should be up)


from that position, use your right forearm to lift the left arm amd make the left thumb point at your right shoulder at the top fo your swing


for the OTT drill, practice taking that up and down from address to impact

notice how the right shoulder stays 'down and under' - and prevents the OTT move

notice also that your right forearm is below the left


next practice back the through - at the finish get the left thumb pointing to your left ear, to get there, you need to keep the pivot moving, and let the left arm swivel (roll)

see the link in my signature for other variations on this drill