Pfanensteil? No.
Last summer I went a couple times to the park in feldsbach and was really disappointed. The swiss have not really caught on to making bike parks yet, it is probably because they are to concerned about hurting the environment. I know there are a couple parks but nothing too special. Although before coming to switzerland I had only ridden the Whistler Bike Park which from what I hear is the best in the world, so I guess my standard is high. I am not a good down-hill rider though!
I am busy for the next week or so but maybe in the end of July I could meet up for a ride. Maybe I'll set up a doodle to organize some days. I have a lot of week days off, but usually work on weekends.