Not yet, I've only used it one weekend so far at MidOhio which is pretty smooth and has very flat curbing. It scraped in a couple of bumps, but very lightly. I will have to be careful around steep curbing at some tracks. It might be worth making separate mounting hardware that raises it up at those tracks now that I think about it.
dub are you still getting those rhs painted?
nooooooooooooooooooooooooooooooooooooooooooooooo!!!
Sorry; I got a little emotional for a moment there. Just hate to see any more clean RHs get bastardized.