Today I got up the nerve to cross into my creek with my Max II. I have the smaller tires on the machine. Got into the creek ok, was pleased how it moves through shallow water while moving over cattails, etc... In open water, wheels just spin with no movement while trying to move forward. Will move slowly in reverse. There was just a little crosswind. Think it might be a tire issue as I was not stuck. Floats real well. Thanks for the help.