increasing grip size was the most helpful, right now i play with slightly bigger than g4 than my former thinly gripped g5. it feels big and clumsy, not as nimble as a smaller grip, but with it I can smash comfortably right now with no more pain! and i hope it stays that way....
This came across my mind that I was decreasing my grip size by wrapping one thinner overgrip just a while before I got this golfer's elbow injury. Should that be related somehow ? Or the thicker grip provides better shock absorbing so it help to reduce the impact on the elbow ?