If you’re going to try a Bravo 1 prop, you may want to try the Bravo LT, instead of the Bravo FS. The LT was designed for boats such as yours, that have kickers, and are heavy in the rear. I have a 2017 MX 2040 w/kicker and a power setback, and tried 19″, 20″, and 21″ Yamaha props. 21″ was too much prop, 19″ great take off, 57 mph and too many rpm, 20″ 58.5 mph 5950 rpm, good take off, best prop overall of the Yamaha props, and quite honestly, not a bad overall prop for my setup. Called Mercury, and two other major prop shops, and all recommended the LT prop for my setup. Ordered a Bravo LT in 20.5″ and had these results vs the Yamaha 20″, 6100 rpm, 59.5 mph, much much faster take off and faster rise to top speed, take off with the Mercury 20.5″ seemed faster than the Yamaha 19″ also, 2-3 mph lower speed on plane, much flatter running in waters with swells, such as lake Michigan. Engine mounting height apx 1″ higher than Yamaha 3 blade. Tried higher, and was ok in a straight line, but broke loose in a hard turn. Have since purchased a 21″ LT to bring my rpm’s down closer to 6000, but won’t be able to try till it warms up. Our boats are very similar, except that you are apx 300 lbs heavier. I’m at 6100+ rpm with a 20.5″, so I would think you should be around 5900 rpm with the same 20.5″ if you have the ability to set the proper engine height with a power setback plate.