I want this project to suceed in the worse way because I think you guys put this together right and would like to see a diesel boat with outdrives in production that can challenge a gas boat. I think this project can do that.
So, not to beat this to death, too much pitch, not enough prop speed. If it pops on plane fast it's under wheeled for a diesel boat. Your pitch is already too big which means they are not turning fast enough. Less pitch more rpm's.