Thanks for sharing your experience and insight with your JTR products.
I was wondering if you have could possibly try one of your 2010 T-8s as your center and post some results.
I have heard the older T-8s as well as the T12s (not the LF's) but it was a fairly poor setup. I was able to take a single T12 from the dealer to demo it in a better room. I used it as a center and it was "Awesome". Full midbass for realistic dialog, detail, dynamic; pretty much everything you would want in a center it had.
I personally feel that your center is the most important aspect of HT as a good percentage of the movie recording tracks through it. I was wondering if the T-8s (being much cheaper then the T12s) would have that same impact, particularly in the midbass region.
I sure hope that the T8s can perform on par with the T12s as I already am in over my head and I can't help it.