Bob Reeves Sleeves
Reeves Sleeves allow you to optimize the gap between the end of the mouthpiece and the beginning of the leadpipe. Sleeves are available in quarter-sizes which adjust the gap in increments of 1/64"(.397mm) and range from #1 (largest gap) to #7 (smallest gap). Your mouthpiece must be properly converted to accept Reeves Sleeves for this product to work.