We have A 2000 cobalt 206 boat that we keep on Lake Tahoe moored to a buoy. Wondering whether it is better to leave the outdrive up in the trailer position or all the way down while it is moored for the summer. Looking around the marinas here it seems to be mixed with some boats leaving it up and some down. Which is the best way to go? Freshwater very clean lake, usually pretty calm but can't get windy and pretty wavy in the afternoons.