I know Larks is asking for advice for those attending a big time camp, hoping to get picked up. I cannot offer any advice...but it struck me as I was reading through this thread that everything said is applicable to EVERY camp.
For most officials (especially me), the "Big Time" camp is the one put on by, or near, you local chapter and assignors. Lots of good advice for anyone trying to get the attention of the assignment secretary and get a better schedule next year.
Big time is relative to your current place in officiating...Keep 'em coming