Here is an example of "crowd control". The top image is a quick PTGui
stitch with no masking.
The bottom image is after a whole lot of Photoshop work prior to stitching. This shows the benefit of shooting more than 1 shot at each position.
These were taken with a Nikon D300, Sigma 8mm f3.5, NN Ultimate R1 and a Manfrotto monopod.
After the images load, drag your mouse around in either the top or bottom panorama. Both images will follow your mouse movements.