2006 classic, 2005 200 Yamaha vmax, believe I have a 25p standard Yamaha 3 blade stainless prop. Have manual jackplate. I am 350 pounds, and with a 190 pound partner, all our gear, full tanks (have 10 gal kicker), single console, I get anywhere between 65 to 68 gps, depending on wind, current, chop, and air temp. Been told you lose approximately 1 mph for ever 50 pounds of weight. So if I lost 150 pounds, I would be around 70 to 71 I guess. I know how to push a boat, been in the seat since I was 16, and I am 46 now. I even know how to bump-steer chime right on the edge to get a little more speed. Had a boat race driver teach me when I was young. Alone, minimal gear, 1/2 main tank and empty kicker tank, with no wind, no current, and no chop, best I have done is 69.8 gps, at 5900 rpm. It took me 4 adjustments on the jackplate, 1/4 inch at a time, to dial her in. I know 5500 is the listed rpm limit in the manual, but I was told by a mechanic that the red line limiter was around 6000 to 6200. So I set mine up to run wide open at 5900. I dont run that though, just set it up in case of emergency and I need the extra speed. I typically run 4300 to 4500 and average 45 to 48 mph. Fish cannot swim that fast…lolHope this helps a little and please feel free to correct me, as I am new to Basscat boats. Bought mine 2 years ago. I do know that they dont like a lot of trim, but it is important to get the jackplate hight dialed in.