I've had three TP2 & none have shown this. I sold one to a friend, and I didn't have that one long. The 2nd one is tester, and it's been fine. The 3rd is my everyday phone, and I've had it since the 1st week Sprint started swapping out the TP1.
I use
clear protector on my TP2s, and no banding...FWIW.