**Edit** Title should be Payload Altitude, not duration. My mistake. ****
I have been reading the pinkbook and think I've misinterpreted something about this class. I have been thinking that the contest director supplied the payload and people 'check them out' and fly them. The more I look at it, though, I think the flier can build his/her own payload (of the proper outside dimensions) of any weight (over 28 grams), present it prior to the flight and return it for inspection after the flight. Is that correct?
I am making a few payloads that meet this requirement to give out if people want them, but I don't think they would be required to use them.
For reference, this is my first stint as a contest director, so any help is appreciated. The contest isn't actually sanctioned, but we're doing it to work the bugs out, so I want to stick to the rules!