From actual, logged data: 4500 Kv x 7.4 volts = 34,000 rpm unloaded
For loaded rpm (what happens in the real world) figure around 28,000-29,000 rpm on the water. I have no idea what "reducing end travel" means. If it means running at part throttle - DON"T DO IT! More ESCs are damaged and/or destroyed by extensive running at part throttle than you'd think. Part throttle on a potent system can overheat the ESC fast. It's your boat, you've been warned.
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