hi all
if you look at all the great player the first move of the down swing is the hips sway, some move a little some a lot but all move some and all pros i have looked at in frame by frame start the him movement where there hands and club is sill moving back, this makes the club head lag even more as hand start to move down as for a instant the club head is going back as hand move doen, this movement is started by hips moving out the way so elbow of right hand drops and its that movement the generates the clubhead speed, look at any high handicap player and there hand pause for and instand and the clib head does too and losses that lag that the pros make happen. it the timing of the pros at the start of the downswing and it dont matter if it a one swing plane or two at impact the both look the same and its there where it matters.
bill