We actually bypassed RSA in favor of Google Docs for check-in and check-out so that our helpers could use tablets to see the lists, tap on the name, fill in anything that's missing, and send them on their way. RSA's default check-in/check-out should be from the list of names, and check-out should provide a tab so helpers can access the list of winners/items in addition to the list of bidders/guests. Both lists should lead to the same record, which can be updated/settled on the spot. Obviously, we'd rather keep it all in RSA, but we had over 400 guests at our event, and the current system is just too slow.