Please see the most recent updates in the "Where did the .com name go?" thread. Posts number 16 and 17.
I think you're right about 3W5. Here's how it looks in FSX with the ORBX scenery. I took off with this plane, the Carenado Bonanza, with 100% fuel, and 200 extra pounds in the back seat. The takeoff was pretty easy.
The guy mentioned density altitude - did you factor that in?
