Unfortunately Event Tyres (who have numerous recommendations in the Porsche forum) don't cover Somerset or Devon postcodes it appears, so I'm on the hunt for a comparable quality recommended mobile supply/fitter that I can trust with my P&J. EX or TA postcode is Ok for me.
Cheers, I'll look into that. I already have enough history with Jack Sparrow and his shipmates down at Bridge Taunton to last me a lifetime. Avoid them!