I have a Hunter 44 Aft 2005 with Yanmar engine 4JH4E 56 HP. I recently installed a Max Prop. size 18" with 14" pitch. I have been experiencing some vibrations over 2000 rpm. Has anyone installed a max prop on their Hunter 44? And if so, what was the pitch in inches (or degrees)? Has anyone encountered vibrations and if so, did you raise or lower the pitch? Thank you for your advice.