Just rode Tug Hill with lots of chop and moguls, and the xp's are dogmeat..they bounce all over the trail and keep popping left right over the chop. Seen about 20 , and those guys were getting beat up. My revalved, beefed and rewelded mono was stable at 80 plus while they bounced and had to slow. No contest. One motocross racer with us on an old MXZ couldn't believe how bad they take small bumps. Maybe they are good on big jumps, but those guys were getting a workout for sure. Even the cats we saw were better than those xp's. One guy kept trying to juice me he was so mad a tanker was playing with him. Just the view from my rtx on one particular day.
And yes, I have ridden them, and yes, they do not bottom like the Yams, but shock revalves make a world of difference.