I was wondering if anyone could lend me a hand here. I was under the impression, and asked on this board, if you were using UST rims, like a Mavic Crossmax XL, that you did not need to mount Stan's Rim Strips when mounting regular tires and using his sealant. His sheet the stuff came with said i need to. What the...? So to end all clarification, do I need a rim strip or no rim strip when using stans sealant, regualar tire, and UST rim?