[dkerby]

"As regards the legs,a geat many golfer think that
classical style prescribes that, at impact and throughout
the follow-through, the left leg should be as straight as
a stick. Definitely not. If you keep your left leg straight,
you prohibit your hips from making their full turn and
restrict the whole free flow of your body to the left. When
your weight doesn't get sufficiently transferred to the left,
your arc is cramped, and your body, arms and hands cannot
release the full power they're capable of pouring into the
shot."