I drilled up my UFO at 55* x 4 1/2" x 30*. I have been throwing this one at box finish of 2000 tru-cut. The UFO is a bigger core/cover combo for me. I have thrown this one on some modified house patterns and on the PBA50 Billy Hardwick 44 pattern which in 2020 is 44'/28.2 mil condition. On the modified pattern, I had good results with the UFO. It read early enough to keep me from using a 1000 tru-cut GRAVITY EVOLVE. Compared to the EVOLVE, the UFO was slightly weaker up front but had more energy down lane and rolled forward just slightly at the end of the pattern making it a much better option. On the 44 ft/28 mil pattern, the 1000 covered EVOLVE was a better play as it got out of the skid just slightly earlier than the UFO. Once the EVOLVE started to bleed too much energy, then the UFO was in play for much of the remaining games of the block. Buy this when you want something to pick up earlier than your hybrids with big core motion down lane.