The original three blade props were replaced with four blade 21x21 nibral props.
Hattitude had several years of bottom coats that we removed. I then had the old Gel Coat removed (Peeled). This was a fairly expensive process but well worth it. We found a few very minor blisters on the fiberglass which was easily repaired. We then went back with the new Tuff Stuff a two part sealant and then the bottom paint.