A larger grip actually fixed my driver slice. For the longest time I couldn’t figure out why my driver face would not close or square up at impact. I was using the drivers std size grip with tapered profile. Once I switched to Golf Pride mcc +4 With an additional tape wrap it corrected the slice. 2 theories for me: 1) either I was gripping way too hard because my grip was too small so i couldn’t release or 2) on my downswing my driver would twist and slip in my hands.
I have been using the JumboMax since they came out. My consistent straightness is phenomenal with these XL grips. I will never use a small grip again. I take it one step further with my driver and fairway woods; I use the reverse taper Enlow grips. They are great too