I have played with them for the last two years and just ordered some more. The super grips are fantastic. They are a little harder, but they grab so well you will not even notice. They never mushroom or lose shape. Mine lasted almost a year with playing one to two hours every day. Jon will tell you to scuff them more than I do, but I rarely have a miscue and those are from bad form. The moori the other guy is using mushrooms after a week of play. I really don't like those after using Jon's tips. I play with his cue too and the only reason you don't have tons of people on the forum talking about them is because he doesn't sell them for one to four hundred dollars. Best cue and tips I have ever played with. Highly recommend all of his stuff. Check out the web site and give him a call. He is usually available, but if not you will get a call back quickly. Have you ever been able to talk directly to these production cue builders? I have always had to go through a third party.