Well, I'll be able to chime in here in a month as I am refreshing my 950 with 39mm FCR's. The set I bought came with a clamp for the TPS so we can compare notes. Along with offroad, I use mine a lot in technical as well as touring.
I too was battling over rougher stuff, 10 - 20 seconds of whoops and it was nearly unrideable. I had to rev it out with the clutch in to clear the carbs.
I often wonder where that road goes? And that, has usually made all the difference. Appologies to Mr Frost