[Dixielandjazz] Louis Armstrong's mouthpiece

[Louis Lince]

Hi Dan,

I've never heard it said of Armstrong, but have heard that some of the old 
time Parade hornmen in New Orleans did just that to keep the horn steady on 
a hot sweaty day's parading. Still sounds very cruel to me!

best

Louis

Dan said <polite snip>
Louis Armstrong used a saw on his mouthpiece to abrade the rim in four 
places, so that (apparently) it would stay in place more firmly, even though 
it made his lip bleed.  Is there any truth to that?