Forget the B&W Stealer Network and get started with someone who will give a shite in the future. Pat Keenan of Mobitec fame will come to your workplace home or place of worship and service your GS with speed and efficiency. He's a BMW trained tech and will be able to stamp your book and keep your warranty up to speed even if BMW GB won't...
I've been using his expert help for the last 80,000 miles and that is praise in itself as I'm a complaining boll0x.
He laso rides a GS and does offroading and races an R1, certifiable nutter, but top man.
Pat Creagh.