Sandiego,
I had the same ride for 8 years, the powered/servo ABS is a dog and BMW abandoned it in 2007. Make sure to service the ABS unit and bleed the system. Check the final drive as well...
It is a great all arounder and with the spokes you can take it into some rocky stuff.
Here is a pick of the two together, I got rid of the GS. I had extended wilbers, 2 brothers full system, Krauser bags...
BB