wow...great top speed!. 1) what mounting holes is your engine bolted to.....the very top (lowest) setting? 2) What propeller brand and stats are you using? 3) stainless or aluminum prop? 4) what RPM at wide open throttle Thanks! My (just purchased) 2017 22 SSRCX with SPS and Yamaha 150 with aluminum prop (no idea of its pitch- no external stampings) only turns 5400 RPM at 34 mph GPS speedo with 2 people and 3/4 tank fuel and minimal stored equipment which seems less than expected. My motor is mounted to very top holes putting it at max depth. Any other Benny members have thoughts? What holes are engines usually mounted in? Does it vary by model and layout/accessories? If you raise motor, will it tend to cavitate prop if carving turns while pulling tubers ? Appreciate all feedbackFinally took the time to upload some pics to photobucket. Once that's done, the rest is easy! Here is a pic verifying our top speed. Not too shabby for a SLX 21 with SPS and a F150 Yamaha. At least I'm pleased, and that is what matters.