TubaForum.net

> "motivated seller" priced, and in like-new unaltered condition
> seller offering a 1-day (only) trial, whereby I would pay r/t shipping if they offered me no noticeable improvement. would IMMEDIATELY have them back on their way to the seller (again) after an only ONE-day trial
> shipped in c. $8.50 Priority mail box in rolled-up padding (one or both ways)
> I would pay in advance in full, but would expect a prompt refund, if returned

If you are successful, I would totally buy the old king valves.

Were I to return them, I would also pay a fair restocking fee (as it's a nuisance to pack up something and mail it to someone).