Big W ,
I rolled and tipped it with a brush...but still ended up super finely sanding and then polishing/waxing with 3M compound to blend in as best I can.
Saltypup has a good idea regarding the Awlgrip (wish I knew that 4 years ago)...its a slightly higher end paint normally used by the pros, but if that number he posted is a match for the gel coat, I'd try it if it were locally available...you won't find it at a West Marine, but any good boatyard could get it to you. I don't know the minimum quantity for Awlgrip, but you can buy Perfection in Pint size 2 part components.