I have a 2014 mx2025 300 offshore with 8″ atlas jack plate. Ran the stock salt water2 21p at 5800-5900 rpm at 59.5-61 mph. Ran rev 4 21p at 5900 rpm at 60-61mph, bravo 1 fs 23p custom 5900rpm at 60.5-62 and turbo TXP 21p custom at 5600-5700 at 62-63. Hit 64.5 in spring cold water with good tail wind and out of control haha. Elevation around 1800feet.