During the service over this last week I drained and re-filled my BB with Millers EP140 the same as last year. At this point the rear wheel had not been re-fitted so I ran the engine and BB in all gears up to about 4000 rpm.
I put a stethoscope on the main casing and also the pinion end of the BB to listen for any irregular noises, it was that quiet it sounded like a well oiled sowing machine.
The rear wheel is now back on with Supermax pulley, belt tensioned to their recommendations (3/4") deflection then ran her up to 4000rpm in fifth WOW its never been as quiet. Last year it was screaming like a banshee.
Cant wait for the spring to do a proper road test.