Originally Posted by Glenn111
First step...verify the accuracy of your gauges.
I totally agree. Though I feel they are somewhat accurate as both motors are reporting similar RPMs.
I'm more of a weekend warrior with my boat so I only go about 11mph (pulling a dinghy) so I rarely get on plane. I mainly posted this question as I was getting a survey done.
Over winter I plan on setting up a MFD and installing an engine analog to NEMA kit so I'll find out what the true RPMs are next year.