Thanks ED,
I bought a Delta Power miter saw from a pawn shop last year and I think they had been using it to cut shingles with it, I had to take the saw apart to clean all of the tar and mess with deisel, I got it cheap, but I spent a couple of hrs cleaning it..
I would think that a saw would leave a rough end.
What is the best kind of valley on a 4/12 roof, valleys are about 20 feet long ??
Thanks...BJ