[Normagain]

Here is the way I filled my scupper holes. Dish out both the inside and the outside, I forget the recommended angle ratio but if your using epoxy you can put multiple layers on the inside to make sure the patch holds anyway, insurance. The most important thing is to get to original glass for a reliable bond and to do this far enough out from the hole as well. So you have your dish on the outside and inside. Epoxy resin one layer of cloth on the outside of the hull first and let that cure. Since you are working upside down, just check it to make sure no bubbles form and the patch does not pull. I had no problem there. Then you can work from the inside, use cabosile/silica to fill in the hole on the inside to the lip of your dish/bevel, only filling the the original hole. Then put multiple layers on the inside of the hull filling in the bevel. I like to start with small patches and work out with larger and larger cloth circles. The lighter the cloth the stronger the repair will be considering the same thickness of layup. I used quite a bit of layup on the inside of the hull and my largest patch is about a foot square. Overkill maybe, but why not. You can then fill and fair the outside of the hull, you will have a nice dish to fill, cloth again is better than fairing filler.