A large Opti is the same size as an OR-12 Walleye board (3.5 x 9.75). The Opti medium is 3" x 7.75" which still has plenty of surface area to pull a 300 Bandit at a 45 degree angle at 1.8mph with less dead weight and less drag on your pole which is better suited for Crappie. Only downside to the Opti medium is it goes out at less of an angle when you go over 2 mph because of less surface area.
Just to add to this comment. The medium boards don't work as well as the bigger boards when using the Tadpoles. It weighs the back of the board down to much.
We only sell the Best. Ranger, Xpress, Yamaha, Suzuki, Tohatsu.