In the past when flying out of STT we used the Red Caps/porters to handle our checked bags. After getting to the airport we would give a Red Cap our tickets and he/she would print out the checked bags ticket and our claim tickets, load the bags on a cart along with our carry on bags and take us to the front of C&I and then over to security, give us our carry on bags and take our check bags to wherever they go. We always tipped them, of course, for the fast service, etc. This last time, though, they led us to the rear of the Delta counter line in the lobby and we had to wait until our turn to check the bags with a Delta agent, then the Red Cap, who waited in line next to us, carted our carry on bags to security, waited for a tip, and left. Have the rules changed? If we have to wait in line at the Delta counter to check a bag, we don't need a Red Cap to tote our carry on bags to security for a tip. So, does anybody know what's going on?