[BerntR]

Im just reading all of these posts for the first time. Interesting stuff.

Hope Im not covering old ground but BerntR from a pure golf perspective Ive always considered the flat left wrist to be a Rhythm enabler and "ROLLING" as a Flat Left Wrist maintainer. Is this correct in a scientific sense or is this just a golfer talking feels or something?

To my mind its as if the left wrist will be broken by an insurmountable force unless its rolled in some manner. Hence you cant try to merely hold it flat , you have to Roll it flat..... to coin a phrase.

My apologies if Im digressing or regressing conversationally.

That's how I see it too.

In theory I guess you could use a strong double action grip, just cock and recock both hands through the swing - angled hinging without turn and roll. But I guess it would be very difficult to monitor and control the club that way.