Thank you for help!Get a jack plate. that notch is to run a short shaft motor in shallow area.
remember, every 4" back from that vertical flat area on the toon log at the bottom, means your anti-cav plate goes up 1" (typical setback rules of thumb)
your 20" motor may still sit too low.
adding a 3rd log means you are going up 50% in drag. you are going to loose speed unless you add power.The pontoon has some decent dents but no leaks. Any idea how much the dents would effect speed? Obviously I’d increase buoyancy, but I’d like to not lose any mph