In reply to GrahamD:
Apart from the odd route in the newest SMC guides where the grade is actually given as "Scottish VS", there should be little difference between a VS in Scotland and a VS anywhere else. Though personally, I think grit VS's are hard and Scottish VS's are easy, so what do I know?!?
Dave's climbed 8c in France, so I'd imagine he'll have graded his new route relative to that, plus others he's done in Scotland and elsewhere.