Hi Scott - yeah- I've got a rubber band helping the springs on my soprano.

But I think Dave's rubber bands are on the neck where it attach's to essentially lengthen the horn. I think the rubber band he is using is keeping his neck pipe from completely seating, which would make the horn a tad lower. Could be that embrachure.

Great guy, great sound, great career!
Randy
PS - have a great week!
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Randy
PA4X, SX900 (Baby Genos), Roland U-20, L1 Compact, Way 2 Many Saxes
"My computer beats me routinely at chess - but it's NO MATCH for me at kick boxing!"