Buddy and I have talked about this greatly on both my GS and his, both having Promaxes now . . . . 300xs, lightened (taylor likely) mid, way less setback, would be great! However, set-up would take some work, and putting that motor on a 'diet' can get expensive, but really, can be done. . . . . the limitation in RPM would be a concern for me however, certainly have to drive it differently, props, etc . . . . but turn key, idle all day, and probably boat all year on 5 gallons of gas and a quart of oil. . . haha, okay, maybe not, but close . . . haha