Jim-
You'll probably need to await input/feedback from either Nuance or Mr. Frank VA on this one as I believe they are the only ones with the RTs currently in-house. My stock STs work fine at that listening distance, and room is funky config as well. Have had a couple of folks by for auditions, and in spite of the room config their feedback was positive.
Am awaiting arrival of a friend's QWs, probably another month out. While our houses/rooms are significantly different (he has a log home), our systems are almost identical AVA equipment, so should make for a pretty good A/B. I can confirm from my experience that the qwt technology handles weird room geometry very well. Speakers are roughly 8' apart, 26" wall behind to back, and maybe -10" center to side walls.
You might also keep an eye on this thread on avs as it appears Jim may be setting up an A/B/C including the ST RTs.
http://www.avsforum.com/avs-vb/showthread.php?t=939744Don't see anyway you can go wrong with either, simply what tickles your fancy. Good luck