I shoot with a Schon CX-06 with a McDermott I-3 shaft. I am very happy with the fit of the shaft matching the butt. But what is way more important is the feel of the hit and the accuracy of striking the cue ball with a 11.75mm tip diameter. I'm also a fan of a small ferrule. A few years ago I purchased a used McDermott I-2 here on the forum and really liked it. I used it for about a year and then ran across a used I-3 (also here on this forum). I've used the I-3 since then. A big plus on using a McDermott I-series shaft is their maintenance program. They'll clean the shaft, reseal it and then install a new Moori tip at no cost. You do have to pay a $21 shipping and handling fee, but that's about what a new Moori tip would cost anyway. By the way, I did borrow a friends OB-2 shaft and played with it for about a week. I didn't notice any difference in performance compared to the I-3 but the maple ferrule on the OB-2 was distracting to me. Good luck in your quest for a good shaft.
