Nytrunner
Pop lugs, not drugs
Couldn't you create a convoluted tube (parallel wound) that has a waxy internally finish with a lower inner paper ring? Is that beyond 21st century technology? Could it not be used with current Estes MABEL technology?
That's a question for Estes and the paper co. It'll all come down to how much it'll cost to implement, and how much a price increase the market will bear.