Since getting the TR91's I invested in a second hand cast wheel set (off here..) and put TKC's on my oe spoked wheels. I put the TR91's on the cast wheels to use them up.
I haven't had a chance to play on the Road smarts yet other than a couple of laps of a roundabout

just to see how they feel.
If you want the adventure look in a tyre, I have played with trail attacks, exp's and the TR91, and I would always go back to the TR91 - really good tyre. What I liked about it was the damp / wet, grip / feedback, and the very neutral feel of it. There were never any shimmies or overbanding wanders (that the trail attacks used to suffer with) and it would just roll from up right into lean in a nice smooth motion. (no falling in or 'push' get down yer fecker.. !).
I got about 4K out the rear, but it's my toy - I don't commute on it and it's all play or Rapid teaching.
How do the TR's feel compared with RS's ? Don't know yet! Done all of five minutes ... (Track day at Rockingham in a couple of weeks - I'll let you know then !)