Brian Manzella, a teaching pro in New Orleans and Louisville, Ky., who lists David Toms among his clients, said going to a cross-handed chip grip for Couch was born out of necessity.
"You want to have a flat left wrist and a bent right wrist," Manzella said. "Because your left arm is so much further down the club, you're almost guaranteed that your left wrist is pretty much flat, and because your right hand is tucked in, it really bends your right wrist. That's the single reason why a lot of people over the years who have the yips go to the cross-handed putting grip."
Manzella said a key to success with the cross-handed chip grip is dealing with the initial shock.
"As good a short game as David (Toms) has, if he tried it, he'd probably send the first few balls over the green," Manzella said. "But once you get a feel for doing it a different way, it can help a person who's been having trouble with that part of the game.
"Your brain doesn't remember all the bad pitch shots when you go to a new grip. It's like getting a fresh, clean slate. In Couch's case, it's a fresh, clean slate with a little bit of a mechanical advantage because he's a tour pro."