Took ST in for service and extra's...
full on service (belts, shims etc...), new clutch, chain and sprockets (1 less gearbox tooth), 2 tyres (fit new front marchesini and Metz sports), and other sundries - surprisingly enough no rockers required (as seen on some of the other threads - I change the oil every 3k, I dunno if that makes the difference).
It turns out the front wheel bearings were gone and the tyre was a bit knacked, jeez does it handle and pulls a lot better!
Mind you, I took it out for a ride and the gearshift return spring broke - took it back and he fixed it there and then for me, I was surprised as 'specially as they were up to their tits in their prepping tons of bikes for Almeria track meet...
Thanks Pete (nice cup of tea too...)