IMO, a lot of misinformation has been passed to shooters over the years. O&T should have understood what was required for proper analysis. I guess they were unable/unwilling to invest the resources to do it manually, even with semi-slave student labor, like Jones and his trusty computer do it.

I'm aware of master barrel borers shooting patterns and "tinkering" with the choke until they got the pattern they/the customer desired. Never heard of anyone firing nine more patterns for verification.