I had a thought, about all this "it's never been tested" nonsense. You know it has?
I don't know how many of you are familiar with "life repair". It is a series of processes that the C/S selects specifically for the newby PC to fix up his life. They do some interviews first, find out the lay of the land, and hand pick processes to best handle that particular person. In the mission network, before the massacre, the c/ses had a very good handle on what to run and what not to run. It may be an ad hoc test of what worked and what didn't, but the missions boomed with that sort of approach.
That test may not be a scientific as some here demand, but it got results. The missions were making the big bucks. Sounds like a pretty good test in my book.