Righty-ho!
Following the shake-down run and the realisation that the main reason my brakes were a little 'off' had almost nothing to do with my knackered fingers and wrists and almost certainly everything to do with the pads having 'some*' friction material left on them, I am now fully booked in and jeez, next time, try to find a more expensive hotel than the one in Worthing. I could have bought a place for that price...
Bike booked into Cotswold Motorrad next week for an oil and brake fluid change by which time the old pads will be in the black museum and a lovely new shiny pair, bought two years ago off an ex-member for a not large amount of money will have been slipped into position (with the pistons almost certainly being pushed back...)
* 'Some' is used to save my embarrassment at having to give the exact measurement