I have asked this question before, so hope you know. Have you ever zip tied the fork to see how much travel you are using with the Race tech springs?
The spring weight they recommend is so much higher than what is used on comparable weight bikes, such as a KTM 950. There are other aftermarket springs offered for the F800 that are much lighter.
BMW Motorrad USA customer service: "We make superior motorcycles and continue to improve them."