Thought I would have a change, had the R6 for 4 weeks and I'm well pleased and I don't miss the Duk at all. If anyone is thinking of a change then try the R6.
I tried one. Lots of revs, no torque, gutless even if it's fast. The strange thing is that it develops less torque than the older bike - it only develops more power due to gazillions of revs. It's ok if you like that sort of thing but, a 749 (or a 675) would leave it for dead on anything but the longest straight.
Even the rags like PB say the same thing...which is illuminating to say the least and not what I would expect.