Hey TAlexb,

Ya, everytime a user wants to see it is the request. The idea being circulated right now is that various combinations of product_classes and industry_groups will be dreamed up for a report. There are likely to be ~6,000 of these reports. Yes, someone is going to dream up ~6,000 combinations of 350 intersections. Then a user goes to the list of reports and selects which he wants to see today.

And so, yes, I'm toying with the pre-generation option too, since once the data has been loaded, it never, ever changes. But at some point, you just know they're going to want to be able to generate every possible set and sub-set of intersections, so I think the pre-generation of static files would be a temporary delay of the inevitable pain.