Quote:
Originally Posted by rowuk  The paper not only changes the gap (maybe not so important) but it also puts a stage of insulation between the vibrating horn and the mouthpiece. I would suspect that would make a BIG difference. |
The gap is very important to how a horn plays. Bill Adam is not really big on talking about any kind of equipment tweaks, but the gap is the only time he ever mentioned anything concerning equipment with me.
See here for more info on the gap:
Bob Reeves Sleeve System and Trumpet Mouthpiece Gap Information
And the paper trick:
The Bob Reeves Paper Trick - An experiment to adjust the gap on your trumpet mouthpiece.
I would suspect that adjusting the gap would make a bigger difference than having paper in between your mouthpiece and reciever. Last year I played for months with a piece of paper stuck in the reciever because the horn played better with a slightly larger gap. When I had time, I had my mouthpiece cut for Reeves sleeves.