Danny,
If you look at Sandy's boat pictures, I am Dave and that is the boat we built. I tried kevlar felt and met with disaster! Sandy is right, it is extremely difficult to get the epoxy saturated even using the fiberglass roller Sandy suggested! I strongly urge you to use kevlar but definately use the woven material NOT the felt! You'll use 1/4 the amount of epoxy and get much better results---trust me on this!