You want to stop blisters? Get your ass out from behind the computer, go grab a shovel, rake, pick, etc and do some heavy yard work with no gloves on. That will man up your hands. Then ace the grip donuts (you should not have your hands slammed up against the inside of the grips anyways), put down the soda, loosen your grip on the bars and use your knees more and ride. If you still get blisters after this, clean the bike, throw it out on the curb and place a for sale sign on it saying "Need to sell quick. I keep getting blisters so I am going back to racing my motorcycle on the computer"