Aaron Hoffman wrote an answer about Backcountry Access Magic Carpet Skins on January 31, 2013
Hey - I recently bought a pair of these skins myself, so I can tell you a few things about them. First of all, the tip and tail mounting hardware is great, my buddy just got Black Diamond skins, and we both agree my hardware is nicer. However, the tail piece attaches by cutting the skin down to about half its original width, and then doubling it back through. So if you cut the strip long enough to pull it through and make the skin tight on the 185, you would have about 10 cm of skinnier skin under your ski on the 195s. Not necessarily a problem, but something to think about.