what i did was fit the end over my sink faucet and turn on the hot water for a little bit, minute or two after the water gets hot. then dumped the water out, put my finger over the bottom hole, poured some rubbing alcohol in, put my other hand over the top, and shook it around. then dump that out and it should slide on like nothing. i used a rag when i was twisting cause if not my hand just slipped over the grip

took maybe 30 seconds of actually putting it on, so easy