A
luthier will use a piece of wood veneer, thin
plastic, or sometimes sandpaper under a saddle to boost up its height
to cure
different problems like string buzzing. This
is okay to do as long as there's only one shim
added. If two or
more are used, a degradation on tone quality may occur. A
luthier added a
rosewood shim to my Martin D18 and super-glued it to the bottom of the
saddle.
I believe this is the best material and the best way to attach
it. This is
a reasonable alternative to making a brand new saddle and if installed
correctly, you probably won't notice a degradation in tone.
Caution: Never glue the saddle into the bridge. The
saddle should
just rest there in the bridge slot with a snug fit. The
strings will hold
it in.
Some
old vintage guitars and the new Martin
vintage series guitars that have the saddle tapered out the the end are
glued
in.
Bob, Gman ( o )==#