I am hard on tires, but I got ok mileage and traction out of the BT-021's on my 2012. The Angel GT's are definitely a better tire, but not good enough to just throw away perfectly good rubber.
I got my 2012 new in February and have 11,600 on it. Love the bike. Waiting on another front tire, I wish it would hurry because it's gonna get too cold to ride around here soon. I hate the idea of parking this wonderful motorcycle. ECU reflash and HID over the winter though, so at least I have something to look forward to. You will love it. Try this. In the same passing situation, drop to 3rd and pin it. It might just get your attention. Did I mention I'm hard on tires?