[BerntR]

That's more like what I was thinking, Daryl.

But I don't think hitting the ground will be the big problem with ball back. In reality perhaps, but in theory the problem is the opposite. To contact the ball with the sweet spot with ball back and lots of shaft lean the clubface needs to be higher - further away from the ground - at first contact. And I wouldn't be surprised if this could make a real difference with a 60* wedge in the hands. Particularly one with a low COG and a weak shaft.

Man, this is interesting stuff!