I know this is not an answer to your question, but it might help you a bit. IMO, PC has become 2 things.
1) A popularity Contest
2) An "outlast the other teams" contest.
Are you getting a financial return for each rib you sell, or is there prize money awarded according to place finish? Both of those should have some bearing on a team's desire to compete. Ribs are the most expensive meat for us to PC and for that reason alone we decline the opportunity to PC them. As a matter a fact, even if it's a buck-a-bone return we'd basically be working for free.
Best of luck in your event and to keep it on topic.....over cook them.
Crash - HIBarbeque.com