I bought this boat recently. Has Mercury 90hp and is extra clean and shows little wear. The rig really concerns me: if I trim down/in like we all do, when I throttle up for take off, it "plows" or turns really hard to the drivers right. Bad enough to scare me!! If I start trimming up, the boat begins to right its self. I have learned to take off with motor trimmed up 1/4 on the gauge. Steering is real hard to left and trim tab is all the way over. Can't read every thing on the aluminum prop. Have measured for 13" diameter but don't know pitch? I would appreciate any suggestions has to what to try to make this rig more friendly.