Where on the boat? Even at the furthest away point, I see the residue. Some misunderstand me when I say "NO" and go to the fold down transom on "LUCI". It even gets on that. since you are headed into the wind, the drag/low pressure zone, just coats the deck with the stuff.
Or maybe you could do it on the back of the catamaran and make the gelcoat steps nice and greasy.

+the other 50% goes to the wind. The only time it doesn't get on the boat is when you use it on the beach.

Just "stuff you learn"