Oh, suggestion: Go to
www.bicycle-stuff.com, click on the "thousands of bicycle pictures", and pick, say, the Goatneck Ride. Click on photos 001-0025, click the first picture, and it'll start a slide show. Sit there and let it run through 30 or 40 pictures and you'll have a pretty good idea. Note that about picture 24, there's evidently a pause in time and you go from a big crowd to people scattered way out. (That site is north Texas stuff, but it'll give you an idea).
In the first few pictures, some of those guys in matching outfits are probably riding together, but I haven't been up front to see for sure.
