As you can see from my sig, I have this prop (well, Acme, but same basic specs the OJ) on my 05 X2. Awesome pulling power/holeshot. At slalom speeds though (30+) I wind over 5000 rpm. But hey, it's a small block Chevy.
2005 X2, Viper Red, MCX, OJ TZ-X5 prop, PPass, rear 750 sacs, KGB, IBS, Bennett Wake Plate, custom wake shaper
(previous) 2001 X5, 1991 TriStar 190