Took an earlier LAX-SFO flight yesterday, plenty of empty seats (48) with 18 people on the standby list. As soon as I get added to the list, I was 1st, and I thought that was because of my 1k status, vs every one else on the list may have been no status. I get my boarding pass about 30 minutes later, and GA tells me only middle seats left, but check back in about 20 minutes and he will see what he can do, and prints my boarding pass. As I am walking away I notice that I am in boarding area 3, and no MP# is entered, so I go back to him, have him enter it, and then the aisle/windows seats open up for me in E+. Everything worked out for me, but I was wondering how I would get bumped up to 1st on the standby list if no MP# was in the system for me. Anyone have a clue?