I cut a 4" strip of fiberglass the whole length of the keel line right up the stem to the gunwhales.  I cut  another 2 18" pieces  that I cut on the bias for extra strength along the keel line near the ends, this will resist abrasion where it needs the most strength.  I used 8 ounces of epoxy that I brushed on with a shortened disposable brush.  The shorter pieces were laid on over the full length glass while it was all wet.

Today I sanded the edges of the fiberglass along the edges to smooth it in to the surface.  Then I rolled on about 4 ounces of epoxy over the entire seam to fill the pattern of the glass so the surface is now smooth.