Just to add that Geoff did a luvverly job with the engine and I'm currently running it in before riding down to portimao in a fortnight, lurching around the circuit then doing as much of the rest of Europe as I can before the end of May. Yeehaa!
That was approx 4,500 miles there & back again on a thing that had....issues... Namely an o ring going on thr slave cylinder, a throttle position sensor on the **** and a full on "see jesus" quick action throttle that made it unmanageable on track. Nonetheless it was a hell of a ride and most issues are now sorted so I can just crack on with riding and not worry about it now. Damn fine bike, love it.