I have a 1998 Procraft Super Pro 200 20'6" boat. I am running a Mariner 200 EFI 1998 as well. The prop I have at this time is a trophy 24 pitch. The hole shot time is about 20 to 25 sec to get on pad. Boat runs fine until about 60mph, then picks up chine walk. The hub of this prop sits within...