Recently purchased a Posi-Grip from Blake Fisher at Eclipse broadheads and must say they will now be fitted on all my bows.
I became of fan of the Shur-Grip when Randy Morin sent me one with my Hi-Breed. Took me awhile to put it on but once I did it was there to stay and wondered how I ever shot without one.
While reading an issue of TBM I seen the Posi-Grip and decided to give one a try.
Once it was in place and I ran some arrows through the bow. The little dimples are absolutely amazing...provides stable hand position and works extremely in the conditions I have exposed it to (cold and dry, cold and wet, warmer Spring like weather). Based off of my experience with the Shur-Grip the Posi-Grip will perform just as good if not better in the hot humid Georgia summer.
Not taking nothing away from the Shur-Grip but the Posi-Grip with the dimples is now my choice of rubber type grips.