Get the Thrux man...you won't be disappointed. I've put more miles on mine than my BA so far this year...and I took the BA on a 3000+ mile trip to GA.
The Thruxton is claimed as weighing the same weight as the BA's & SM's. Stock, the Thrux will SMOKE any heavily modded BA unless you've got a BB kit. I'd have to say it's more capable than the BA's. Perfect for when I used to ride in NYC every day (put some bar-end mirrors on it and it's one heck of a lane splitter), and even better when you find some twisty roads. Or hit the highway and run 400-500 miles out on her.