Hi Len.
Lay it on top, add resin, let harden sufficiently to scrape, scrape off mess and feather in edge. Use a sharp scraper. Don't use sandpaper until you have done what you can with the scraper.
JohnK

: I've just glassed the hull of my Night Heron (no fill coats yet) and I'm
: wondering how best to add another layer of 4 oz glass in the football area
: without creating a mess at the edge of the football. Do I need to do some
: taping around the perimeter of the football?

: Len Thunberg