[Lowboy]

Hi Alan,

The trick is to keep the inside diameter as large as possible. I need 5/8-inch inside diameter, thin-walled, flexible, light, black, non-toxic, non-pinching, smooth-bore tubing. It preferable should have diamond studs. 🙂

I have completed comparison recordings and the large tube provides a noticeably fuller sound on the Hohners. Gets me one step closer to “the” sound when playing acoustically.

Unfortunately that clear plastic tube is stiff as a board.

Lowboy