When did you get the Zync? I don't remember how long you've had your Amex membership pre-BCP.
I got Zync and Delta in double app on 9/10/12. I was lucky enough to get these cards backdated to a very old AMEX green card that I had back in 1992. So my BCP will show it was opened on Jan 1992. My other two AMEX's show Sept. 1992. I used my two cards a ton in the 4 months since I got them. Zync pushed about 17k through the card and my Delta about 5k. My highest Zync bill was almost 8.4k (last month and I PIF on 12/26/12). I had 300/6000 balance on Delta card when I apped and my Zync had about 600 in new charges that havent been billed yet.
Starting Score: EQ 551 TU 548 CK 607on 6/8/12, EX 542(AMEX pull 3/4/12) Current Score: EQ 710 TU 727 EX 704 CK 719(FAKO-EX 697, EQ 697, TU 697) Goal Score: 750 Take the FICO Fitness Challenge