Sliding on the ramps does nothing to your skis, but at O.D. just like any other ramps, you can break skis. So bringing an older pair and/or fiberglassing them is a good idea. Boots should be fine once they dry out. Just mkae sure when you are taking off your boots you take then liner out of the shell and then take your foot out of the liner so you don't stretch out the liner, this also makes it way easier to take boots off. Same goes for putting them on, out your foot into the liner, then slip the liner with your foot in it into the shell.