After we install accurately measured pads in your horn, we adjust your horn to fit the new pads.
This may involve adding washers, trimming a few thousandths of an inch off of a valve stem, or any number of other adjustment procedures we have worked out over the years.

This assures the best, longest lasting valve alignment.

We have aligned thousands of horns of all types. If your instrument has pistons, chances are high we have already worked on horns of the same type.