I was just wondering if anybody out there has a 28 Daytona with 525's and if so what props are you running and what kind of speeds are you seeing?

If its a standard lay-up tall deck I would suggest starting with 32 Bravos. Should run right 100-105. P5X hydros also work well on most 28's.

It is a 2006 ICC 28 Daytona with the X- dimension 1" up from bottom of sponsons. What size 5 blades?

I would guess 30's. I would chat with Throttle up.