OK I will add my .02 cents. I am in the legs as support camp. Why..because at my club there is a one legged guy that plays off a 3 Hddy, he routinely out drives me, and I have two legs..lol...chuck the hit man, the trick shot guy, hits 300 yds off his knees, standing on poles, etc...there is a guy on the golf channels sometimes that is paraplegic has no use of his legs, hits the ball strapped to his golf cart, special seat ...who also smacks it quite will..so I am thinking legs don't do much, but support. Now having said that, I am not in the top down approach, because the arm move very quickly in the down swing, I still think you need to get them legs out ahead of the swing, or they won't be there to support much of anything. I think the problem is people trying to use all body, or all arms the swing a golf club, they need to work together.