I wondered about that too...just not sure though...
Gary Player discussing Tiger's elbow at impact sort of comes into this IMO:
Alot of the commentators really rate Allenby for ball-striking and his forearm definitely looks different to many other players.
Appleby is one of the few if not the only one with the right forearm on plane. Hogan was on plane, Tiger gets close, some recent swings from Sean O'Hair are close.
Daryl, I think that the players who retain a sense of right forearm drive after release are the ones who usually have some pivot left in them at that stage...
I am making a comparison of Garcia and Ellebye - 2 guys who retain alot of accumulator lag until hands are waist high on the downswing...but they deal with the lag very differently through release to both arms straight.
Garcia has a big pivot move from hands at waist level to shaft horizontal to the ground...drives his forearm into great position...and he still has a bit of pivot left through impact...
Ellebye has smaller pivot move throughout the whole equivalent period...almost gets pivot frost it is so frozen...
Will post it when youtube has finished cooking it!
Would value any thoughts on the differences, thanks.