That's kind of borderline, you could go either way.
Back looks better, but i'm not sure how much better I can make it. Looks like some flexion midway through the reps. Is this good enough to keep adding weight to the bar?
http://youtu.be/INrEKR8gPDg (First 2 from the back, last 3 from side)
That's kind of borderline, you could go either way.
try flipping one of your hands