just got the mail today, in it was the Hammers Blow from ABANA. On page 5 under shop tips...Cushioned Hammer Handles by James DeMartis he is using "Tennis Racquet's Grip"
he says it improves the handle by reducing shock,asorbing sweat from your hands and improving grip.he also says the tape last a long time...might give it a try see if it helps you out!