Brian Manzella said:Ed, sorry dude, IT WORKS BETTER.
You wonder if all the teachers followed me instaed of someone else, how much golf could improve.
What a waste.
To be fair Brian (and you know how many years we have been chatting on the net) - I have certainly tried twistaway. It is a powerful approach, no doubt.
I'm not arguing if it is effective or not for certain patterns, what I'm saying is that a 'true' matching back of left hand and leading edge, requires you to arch at impact (not a bad thing) OR requires a very forward (at low point) ball position OR requires no/very little forward lean of the shaft at impact.
That said, it is geometrically a decent way to go - but personally I find it lacks impact 'support' and forces me to be in an arched position at the top. I will use a twistaway pattern at times, but just not as much of a 10-2-A as you suggest. I'll use it with 10-2-B and a no roll angled hinge, in which case it often 'feels' that the right hand is responsible for clubface control, or rather the 'stump'.
I used this pattern today in my practice session, the end result being I am confirming more and more that my lie angle on my irons is too flat, forcing me to use too shallow a plane angle.