seal leaks properly on flutes, a
is used which is called "partial shimming". This involves the use of
pieces of paper of different thicknesses (shims), placed under the pad
is a depression in the pad or tone hole. These pieces, generally 1/16"
to 1/2" in size vary in thickness from .001" to .006" approximately. A
tiny piece, like a pie slice, is placed or glued on the back of a pad
or whole round
shim, and when done properly will help to close the gap between pad and
These gaps are caused by a not so flat pad, or a not so level tone hole.
If partial shimming is not done, the flute is more
prone to leak, unless
more cushiony pads are used. The soft pads will fill up the leaking
if it is seated by clamping, but will result in a mushier feel of the
and the leaks will return when the seat disappears over time.
Setting up any flute with harder pads improves the
Air can also leak through the screws and grommets that
It can take a whole day or two to repad a flute in this