My dad and my brother both say you HAVE to use a jet motor in all the rivers I fish. They say everyone else that runs the rivers uses them. Well I'm poor and can't afford a jet motor. I'm 99.9 percent sure that not everyone that runs the rivers I fish uses a jet. I will say that in places these rivers are fairly shallow with lots of rocks in places. I would say the shallowest part I have seen is maybe 3 to 3.5 feet deep. I don't want to haul *** up and down the river but would like to go out on it. Am I going to trash my lower unit the first time out like my family says? These rivers are the wabash,missisinewa and tippicanoe in indiana.