I don't get the sensitivity of the question over the Pilots "Piloting Qualification". It's pretty straight forward did they fly complex fast jets solo, were they qualified Test Pilots? In truth, the advances we enjoy in Commercial aviation today were hard earned by very specialist flight test Test Pilots.
It relevant to ask - did they go to Empire or USAF TPS for example. If not, why not?
Have you ever heard of Google? Maybe you should try and find some facts for yourself. To be honest, your questions in my opinion are show a level of ignorance and are offensive.