My mate Pat booked his in for an 18000 mile service at Fairbairns Inverness, they told him the alternator belt was due for a change, when he queried this (it's due 24000 miles) they said okay leave it, it's extra £80 to do.
His quote was £330 for the normal 18000 mile service, so he tried Edinburgh Motorrad at Dalkeith, they quoted £225 for exact same service.
Pat called Fairbairns in Inverness to query their £330 but they wouldn't budge.