Been doing some early season skiing here in Ohio. Water temp is now about 60*F w/ the recent warm spell so I went from a long wetsuit to a shorty. Now that my calf is exposed I'm getting massive spray leg on my right (rear) calf muscle (ouch!). Is this just a cold water thing or an indicator that something is wrong with my form? I don't normally wear my shorty and don't normally have this problem in the summer. If this is a bad form issue - advice is welcome!