I like using my Garmin GPS watch (920xt) to record sailing races, but I'd rather not have them counted as athletic activity with calories burned, TSS accrued, etc. Anyone know if it's possible to tweak the settings so something gets recorded but not counted in this way? I have no idea how it's even assessing my supposed activity, i.e. does it think I'm swimming through the water, running over it, or something else?