Use a cupped feel only to offset excessive bowing
For this player, a cupped-wrist feel is used because his wrist still appears slightly bowed and extra bowing adds forward shaft lean and sends the club farther behind him. The coach says the more-cupped feel produces a flatter wrist and keeps the club more in front of him.
Channel: PorzakGolf
Watch official source at 3:48Why this context matters
The coach explicitly presents this as a player-specific correction, not a universal wrist position.