Stu and I flew Anderson Flat today 10/19/07. He got up to cloud base at 9000' MLS and I made it up to 7300' MLS above Pilot Peak. He flew about 1 1/2 hours and I had enough after 45 minutes (I launched after him). We had to wait until about 1:30 PM for enough thermal wind to launch, but it was rock and roll after that with the strong thermals. Out over the valley it was smoother but took a while to find sink to get down.