I think (I've not meticulously checked) mines doing late 40s... but when it's out, there's a lot of Motorway where it gets some 'spirited' throttle use.
Regarding the slightly 'gruff' feel, I thinks it's part of the characteristics of the engine, it's not silky smooth like my old Blackbird or ZZR, but I like it.
Mine's due the next valve service, but a few months back they were talking £530, at £383 I'd go for that, even if the rest was just oil, coolant and filters. I've done the clutch, brake and rear drive fluids this year, so that's all good.