| The action on my GDAE tenor is very "high"; which is starting to become
| a nuisance, especially when it comes to playing notes on that high E
| string. A friend of mine told me a while back that my action is down as
| far as it's going to go, but near the head of the banjo it is probably
| close to 3/8" from the fretboard. How do I bring the action down, and
| is it possible to bring the action down even if it is set down as far as
| it's going to go without editing anything.
Many banjos have a reinforcing rod running the length of the
instrument, and if you can get at it, rotating it might fix the
problem. (If so, it means that the rod has been warped out of its
original straight line.) If there is a metal plate between the two
rows of tuning pegs (probably on the back), it's probably a cover
that will let you get at that end of the rod. I've fixed a couple of
banjos this way for banjo players who were mechanically challenged.
Some guitars have such rods, too.
Also, I once fixed a banjo mandolin (Oh no, one of those!) by taking
the strings off, loosening the nuts holding the neck to the body, and
inserting a shim to change the neck's angle slightly. It didn't take
much. If you want to try this, I'd suggest getting some of those new
Guinness cans with the CO2 cartridges inside, empty one, and cut some
shims from it. Beer (or other pressurized) cans make good shim stock,
thin and flexible and non-tarnishing, and think of the fun you can
have explaining your Guinness-assisted banjo to innocent bystanders.