And here's another $0.02 worth:
Best advice I got (from forums, too) was to call Ted Porter at The BeemerShop The Beemer Shop
. I did, and am very glad I did.
I called, left a message, and Ted Porter himself called me back on a Saturday evening. He asked a ton of questions; the bike, me, my riding style, extra loads, pillion, types of roads, tires, the condition of the bike, plans for the bike, etc, etc, etc.
It is a '99 R1100S, no pillion, sport touring, sometimes 50-60 lbs camping gear, 15K miles on it. He recommended Wilbers, for several reasons. It turns out he has these on his '99 R1100S as well. Not the most expensive choice, but the best choice everything considered.
That was a little over a year ago. Two months ago I ordered a second set for a K1200RS. Same procedure.
He will talk suspension and share his knowledge whether you buy from him or not