As a matter of fact I just ordered a 40T and expect to receive next week. Expect this final change to bump my cruise from 42-45mph to 45-48mph. Just hope the roll-off is reasonable.
I'm lucky in that I have the 200 and 350 and can do back to back comparisons. I'm also lucky in that I only weigh 140 and pretty much figure that my total touring load (including me) is about 220-230 lbs. The funny thing is that I prefer the 200 for touring and the 350 for dirt road and trail blasting. However, I will probably tour the 350 this year once I get my packing system sorted out. The 200 certainly wears panniers better than the 350 so I will most likely go the "U" bag route with the 350. Will also have to go with a larger tank as well to get the necessary range. Found that the 350 meets or exceeds my 650 in nearly all categories and leaves me with little reason to keep my 650.
My 350 is set up with knobbies and the 200 with trailwings. I can take the 200 (if knobby shod) anywhere the 350 can go but just not as fast. The 200 is quieter, has a lower seat height, is simple to service, has fantastic range and economy, and it's easier to do "on the road" oil changes.