Just a quick kudo to Mountain Sun. I have seen a number of advriders (notably the Mayor.. Richard Cabesa) using their panniers on a GS. I went to the '49er BMW rally in Auburn last week and saw their product and was impressed with the owner, Jim Colburn. When I got home, I mulled the idea over a couple of days and checked their online catalog and to my dismay, the 28-L pannier that I wanted was no longer available in the color I wanted. So, I emailed and within an hour I had a reply. Jim confirmed that the color (red) was not available anymore, but that he had one set left, his demo set and that if I really wanted red, I could have that one. 48 hours later they were on my doorstep. Good service, if you ask me.