I went up to Downieville this weekend and rode the Downieville Downhill. I went with a friend, and we did two runs down the mountain. For the first run, I rode my hardtail and for the second run, I rode the Stumpjumper FSR Expert Disc that he rented.
Wow! That thing soaked up rocks and bumps so I felt like I was floating. It was awesome, I could go SOOO fast on that bike. The only thing I didn't like was that the bottom bracket seemed a bit low. I was hitting the pedals in palces I wouldn't have on my hardtail.
But damn, that was a fun trail, and even more fun on a full-suspension bike. We did34 miles of downhill, and I completely wore out my hands from gripping and braking. My fingers are sore today. I crashed once, scraped my knee a bit and bruised my arm, but I'll be fine in a few days. The trail is awesome, I want to go ride it again.