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"right side compression"......I like that. Would that be along the same lines as using the ground for leverage?
Don't know if the ground works into it in that way, but look at the lack of "jump-up" before impact compared with say Tiger and the other big hitters of today, and it's more than likely the swing speed on that swing above is in excess of Tigers present best...
"Right side compression" is apparently the key to maximising your distance, and basically refers to compressing the muscles of your right-side lower back quickly from the top of your backswing.
Another description is to try and drive your lowest rib down onto the top of your right hipbone (the iliad crest).
This move solves a lot of problems. For a start it is impossible to come over the top as it drive the right shoulder down and under, rather than out and around...
It also has the effect of automatically transfering weight to the left side, without thinking about it...
Plus, it keeps your head behind the ball.
Plus it brings the club down from the top without any arm intervention, the right shoulder drops, the left shoulder raises and the club travels around with the arms...
Overall, a very good swing thought to have from the top IMO....