Usually being "in the pit" you'll be too close to the stage, and won't get a good sound mix from the speaks. Typically, you'll want to be either :
A. Directly in front of one of the stacks (stackhumping)
B. In a position triangulated from both stacks ( you would be out on the floor a little bit away from the stage, in the center)
Obviously, you could tape from anywhere, even the restroom, but those are usually the two best sounding locations.