I have fished in sleds on the columbia and snake and this seems fine and works well. But in the smaller rivers a sled seems excessive and unnecessary. I cringe when I here a sled coming upstream in some of my favorite smaller rivers. I don't care how good of a driver you are, you can't tactfully work through a hole someone is fishing in a small river. You end up just blowing through the hole, when coming upstream. I would say use the sleds in the big water, and use a drifter or other non-motorized craft in smaller water.