I have a 2004 procraft pro 185 with a 2012 mercury 150 optimax with a 22p solas prop and a 5 inch backplate, I’m currently running 51mph tournament load, at 5,000 rpms. And my captivation plate is about a inch above pad. I see everybody running in the 60’s with the same boat, any opinions on what should I do to try and improve performance? Thanks!