+1 - I went through LAX on p.s. in F and there were three lines to the checkpoint: 1) GS + Intl F (p.s.), 2) all other elites, 3) remainder.
1K check-in is part of the overall merging of all elites. When MP kicks in for 2012, 1K UDU will come after Y/B paid by any elite. A 1K in anything below Y/B/M will stand precious little chance of a domestic UG.