Early this year I refretted one of my guitars, an old Yamaha semihollowbody with a bound ebony fretboard. I hammered the frets in but in the end I had to glue almost all fret ends, some frets were bent due to too much hammering and some frets weren't tight against the fretboard in the middle. I think the reason was that the original fretwire had bigger barbs than any current fretwire..the fretwire with biggest tangs and right size I could find was the Dunlop 6120.
So now I'm doing it again, this time I intend to press the frets in. I've built a DIY version of the new Stewmac "Jaws 2" press (fancy name for a block of wood, C-clamp and special cauls...). Using 6120 fretwire again.
Anyway, how much should I overbend the frets? I've never found a clear explanation of how they should be overradiused - the Stewmac tutorial pictures show a very big radius and recommends hammering them in with one blow while others show much less radius and tapping them in..
What about tools to bend them? I don't fancy building a Stewmac style bending machine. Last time I used two pliers but if someone can think of a better tool, I'm all ears.
Also, if I have to widen the tang, what's the best way to do this? Preferably using common tools, since I don't have access to Stewmac tools because I'm on the other side of the world.