Finally got my O1's mounted and gave them a try. First impressions, they're, uh, clunky. Crossovers/transitions are extremely smooth just like ice, but when you lift up, you can feel the chassis 'clunk' back into the down position. Perhaps I have the center bolt too loose? That's another quibble; not knowing how tight each frame is. I think I've adjusted them so they're both pretty similar, but it would be nice if there was some kind of dial or marking so you could ensure both rockers are matched. Definitely looking forward to putting more time on them and was totally expecting to face plant the first time I stood up, but it's not THAT big of a difference like I was thought it would be. Just smoother vs the feeling of being on rails with traditional inline.