all this is new to me,but i own a 97 tracker 18' deep v hull w/a 90 mercury....i only wished they installed a larger lb thrust trolling motor and at least a 115 engine,my 90 runs good,but that larger engine would suite the boat better imo....for that size of a boat,it came w/a 42 or 48 lb thrust tm,as of july 2011,i had a 109 lb thrust tm installed....