I never said it wasn't great. The lens has been great for me thus far. The sigma at 2.8 produces very good results. It's just stopping it down to 3.2 produces much better results. I compared my sigma to my old canon F4 IS lens because it was the same exact price and the sigma has given me better opportunities as a lens with it's 2.8 capability.
Haha Talley gotta say I'm quite surprised you went with the Tamron duo. Thought you've learnt after 7D->6D and the Sigma 35