Bought a new to me 18’ aluminum boat with a Minn Kota Edge40 lb. TM. It will not handle tidal currents. I will be swapping to a 70 lb. 24volt lower unit. The Minn Kota brand is new to me, as I have only runMotorguides in the past. I need to select a prop for the 70 lb. lower unit. Theareas where I fish do not contain any vegetation to be concerned with. Theweedless wedge and the weedless wedge 2 props seem to be my options. Here is myquestion: Which prop would be the best choice without sacrificing thrust? Any recommendations? Thanks