In the last issue of the German motorcycle magazine PS (Pferde-Staerke, or horse-power HP) 8 different suspension systems were tested on a BMW 1200 GS.
Among such famous brand names like Oehlins, WP, Hyperpro was Wilbers Racing Suspension.
As I’m not allowed to advertise I won’t directly tell you the result.

One more thing: As I translated the article, you might spot some spelling- or grammar-mistakes. Please forgive that!
Take care and have a great weekend

Dirk