John Conley:
First, I unequivocally favor rolling back the golf ball substantially (Nicklaus's 10% sounds fine). Equally, I'd support maximum clubhead sizes, as well as your other suggestions, though with the present USGA leadership refusing to acknowledge (at least publically, anyway) that there's even a problem, I'm hardly holding my breath.
More importantly -- and I'm saying this broadly, NOT specifically aiming at your words -- it cracks me up when people start whipping out all sorts of scientific phrases to justify why the USGA can't get a handle on things. I'm no scientist, but it absolutely defies logic to suggest that the organization is incapable of devising meaningful limitations on the golf ball. They simply don't want to or, more reasonably, lack the guts to.
I know, I know, they're going to get sued. Accept that:
A) They have, admirably, stuck to their guns on spring-like effect....and where are the lawsuits?
B) "Properly handled, dealing with this problem has zero legal exposure" (- Sandy Tatum)
But regardless, I've completely given up on the USGA doing what needs to be done. They either don't get it, don't want to get it, or are afraid to get it.
Play on.
DW