[Dean]

When I exchanged emails with Rick last year, asking him about data, his response was effectively that he does not have any data to share on his calculations, much less that there are calculations involved at all.

Perhaps it is just me, but I just don't get the impression he is doing the hours and hours of statistical analysis to come up with his numbers. I get the feeling he looks at results from 10,000 feet, and makes judgement calls. One of his comments was related to the classes "potential". there is no room in statistics for "potential".