[BerntR]

Great photos bucket!

I don't think CF produces an over roll. It doesn't produce a roll at all. It produces angled hinging.

I actually thought that CF (or actually angular speed) would add inertia and make it harder to close the club than when it is at rest. But after a brief check on www on angular inertia, coreolis force etc I think the work requred is the same in any case.

The machine have to close the club directly. A level hip probably helps for precision. And a good pair of wedges. A little initial torque from the top or somewhere in the down stroke. And keeping the left wrist vertical throughout. Whether the closing is freewheeling or adjusted by the hands isn't a biggie. The hands know their impact alignments whether they are right or wrong, and the work involved in closing the club is anyway close to nil.

Just my 5 cent.