It all depends where you are skiing, if it is somehwhere warmner than you should be fine. If you notice the MX frame is totally different then the snow frame crowbar. The mx crowbar uses a cylindrical lens and the snow version uses a spherical lens. Do you have a link to the lens you are looking to buy? I was almost positive that Oakley only offered double pane lens for their snow goggles, and the lens from the MX version will not fit, which would suck for you...
Paste the link.