Thanks - that makes sense. I would expect in the next 10 years that this type of system will be deployed at more places. I am not sure if I am for or against it. It is sure limiting but I feel this inconvenince will be a necessity. Seeing the massive millfoil blooms in Turtletown Pond in Concord and the Didymo spreads in northern NH, there is no doubt that fisheries can be greatly impacted in the next 10 years. For these proven issues, it seems the fisherman does not have much of a voice if there is proof of ecosystem damage or other locations that have suffered. Get ready for more than less of this type of waterbody control - imho.