The Diamirs are only the slightest bit lighter than the Freeride if you add in the weight of the brakes (which are very worth it in my experience). The Naxo is pretty easy to find (marmot, mgear, FF all had them last year), and next year's version has been beefed up a bit, but it's still relatively unproven. They had a bunch of failures this year, so let's hope that the newer version works better. Check out www.wildsnow.com for more.