Yes Mikey, I am upgrading to the GPS version. Wakeboard Pro to StarGazer.

Perfect Pass themselves on their web site says if you are on a river it is better to stay with a paddlewheel.

Doesn't make sense to me either as you would think the GPS would keep you at a relative speed the boat is travelling using calculations from the boat to the satellites and a paddle wheel would give you an inaccurate speed in a heavy current.

I don't get it but I'm not that bright....