Kurt, yours is the first pack of its ilk that has caught my eye. But I'm not willing to bite on one with straight stays.
Here's an idea: solicit a side-view stay photo from an informed user group and a bit of hunting resume' info (to weed out the eberle and badlands users). The photo should show a stay lying alongside a yardstick or tape measure, with top of stay at top of photo. You could pretty easily scale dimensions off the photo, spreadsheet them, and generate an average. Then, make an aluminum prototype stay and find a Bozeman local with close to the average shape to check fit. If the fit is right and you can make it work, then offer the pack with two stay options: wavy and not-so-wavy.
All that said, it sure is easy to make suggestions from behind a keyboard...
