I've seen you post questions about passenger comfort on the new GT. While my wife's bike was in yesterday getting new tires and routine service, my wife and I went for a two up ride on my GT for a couple of hours.
We had a pretty strong Northwest wind, but nothing compared to what you might run into out on the Western plains. I had the small topcase trunk installed to provide some security for her. Keep in mind that she has almost never ridden two up, she's ridden her own for well over twenty years, so she's used to the comfort and control of the riders position. Prior to her current R1200RT, she had a GL1800 Goldwing for about three yeas, so she's used to "comfort" touring.
Her comments follow:
"The seat was very comfortable."
"The seat vibrates at some speeds, not bad, just noticeable."
"It's the windiest bike I've ever ridden on, it seemed like the wind was hitting me from everywhere when we were on the interstate" (we were running 80-90 MPH at the time, lots of traffic)
"This bike just soaks up the bumps, I can feel the suspension working, but it's like riding on a cloud" (ESA was set for two up, comfort)
"It's way more powerful than my RT"
"Except for the wind, it's very quiet"
"That was fun!"
We're both really large people (read as FAT, but don't tell her I said that!
), and the bike handled the load very well, and still had passing power in top gear to jump to triple digits almost instantly! Power and torque this this bike has! Right now, and anywhere in the RPM band!
Even with all that load on it, it was nimble and easy to handle at any speed, including almost no speed at all. In traffic I could comfortably feather the clutch a bit and ease along at a walking pace without wobble or worry. My only fear is that I may forget to put my feet down someday after I stop. THAT would sure crunch some plastic!
Anyway, only a test ride will tell you for sure, but I thought you'd like to hear. In my opinion, for two up touring, this bike desperately needs a MUCH larger windscreen, other than that it works! The thought of this engine in an LT just makes me drool!