2017 sx24 switchback with 32"elliptical and a 200 yamaha. 7 hrs. On motor and had a chance to see where I am speed/rpm wise. Loaded up with 6 adults ( approx.1100 pds. ) full fuel (25 gal.) trimmed out got 39.4 mph and 5600 rpm. 2 adults (400pds) got her up to 44.7 mph at the same 5600. Waiting on a new sds prop and wondering if I should change what I got (14.5x15) ss reliance saltwater series. Couldn't check motor height as had no other driver but think I'm a hole low. And ...................go