You see more fiberglass trout boats running jets on the White River than you do props. But I have a 20x48 Shawnee Commissary Boat with a plywood floor in it running a 9.9 Yamaha prop. Rumor has it the motor has been rejetted to 15 specs but that's just a rumor. The boat is not lightweight. But nearly all of the White River boats have a lot of rocker to them and that really helps running shallow. I get where I want to go enough that I ditched the idea of upgrading to a jet. My boat will run speedwise very close to a 40/20 jet on a boat the same size. I've also used my boat to float the Eleven Point, James and Beaver Creek. I can't get up some of the shoals a jet can but other than that they are really close. A jackplate might make a little difference, but not a lot.