Also, when you go to ship something using FX, if the package is out of a certain linear dimension, it gets a higher premium tacked on to it. Not sure of the size of skis you are using, but just be prepared. At least, this is what I was told when shipping a bicycle to Europe at a world service center once. The bike under the measurement, barely.

I'm guessing because of the size of the package vs the weight and the fact that it's awkward size may take up space that can be occupied by higher revenue generating packages.