On my boat I cut the glass a little long on the sterm and folded it over, I feathered it in and then for kicks I put a piece of carbon fiber over it. I had extra carbon fiber fabric and even though i was planning on painting the hull and varnishing the deck I gave some thought to leaving the carbon fiber piece unpainted. 

In the end I just wound up painting over it. I really don't think the CF added any strength, but  I did learn a few things working with it and was able to add some carbon fiber accents topside. 

Dave

   After  the epoxy dried, I cut mine flush at the stern and sanded the rough edges. I then cut a strip about 3 inches wide and placed it over the end. It took some work to get it flush where the stern rounded into the keel but I was able to get all the wrinkles out. After the epoxy dried I sanded the edges and blended it in.    Mike

   Thanks for the tips.

Think I'll try to put a piece of glass over the top and blend in.