IMHO, you nailed it, Shaun. I have never driven a car with an MT82, but the above is EXACTLY why I am hesitant to ever get T56 (or derivative) for a very high rpm motor - at least not for one that I intend to shift aggressively.
That said...I'm still waiting to hear what will be different with the MT-82 in 2015 (per an earlier post....)
Ive had both and the tremec shifts faster, shorter and more precise. Theres no opinion about it. Its a mechanical fact. The direct shift will br faster than that remote mounted mt-82 crap.