I was quite happy with the Tamron and the 7D, but I got myself a 7D markII last week and now I am even more impressed.
Same set up as me. A brother from another mother 3 I think the two are a great pair and consistently produce very nice, sharp and contrasting images.
But I am still trying to determine if any of the new options out there are better than the Tamron. Meaning the Sigma 150-600 sport or the new Canon 100-400 ii with a 1.4x. Both have pros and cons.
Oh and do you mind sending one of those Curlews over to New York and maybe some nice stroopwafels as well!