Join Date: Apr 2005
Location: Jacksonville, FL, USA
Thank yo very much for your well thought out ride report. Anything I say to help you with the decision would of course be very biased. I owned a 12S for over a year and only sold it for the GT, which I am eagerly awaiting. I have an LT, and while a fine touring bike, is somewhat ponderous at slow speeds and I would go out of my way many miles to avoid sand/gravel roads on my LT. I also have a GS and do not intend to malign the Boxer engine, but it's just lacking any thrill. The R12GS is a fun bike, take it [mostly] anywhere, and while it will get up and go, it certainly does lack the responsiveness of the new(er) S/R/GT engine.
I just can't help but think that if you opt for the RT you will at some point in time be sorry. If, however, you are a long-distance tourer with a passenger, then I think the RT might be a better decision.
Best of luck with your 'tough/but fun' decision.
Jacksonville, FL, USA