I have it on a Betti QB5. Have only played once, but have done a lot of testing on carpet just messing with different grips and setups. My biggest takeaways: A little length addition probably wouldn't hurt. As others have mentioned, I would be interested to see what bending a little more upright with a little more loft would do. And lastly, it makes the 362g putter head seem a little too light for my liking. Messed around with a counterweight to just add some total weight but that makes the head side feel much too light still. My guess is adding some length would help the head feel a little heavier. Short of that, I may add some lead tape to the sole or something just to see.