The guy who wrote that PDF (Ed Valpey) wrote in fairly tongue in cheek, but he knows what he's talking about. I've had him as an instructor, and he's really really good.
The document in question is linked to on this page:
WMC - Learning
Some of the other SCCV members got back from Calabogie earlier this week. The Miata I used to measure myself against destroyed my time. A 2:55 for me, and a 2:40 for the Miata. Of course, the Miata is now on r-compounds and coilovers.
I need some new, slow people to show up so I can feel fast again.