This is the jig I use to fret beyond 14. Actually I use it on 11 - 13 Also. Its made of oak and
a sacrificed bar clamp. The other parts needed are a 3 inch turnbuckle and a fret caul press both
available from stew-mac.
I use a 14 foot radius on my backs and here we see the hollow mold in the jig ready for the guitar to
be inserted.
