I think funny is asking a whole lot of questions without first...

I think funny is asking a whole lot of questions without first going to the major source that should/could possibly answer! I get your reluctance to derive anything meaningful from MD's or directors trumpeting their credentials however surely if you understand or have a basic knowledge around workability then wouldn't it be useful in gauging their response/s to technical or process inclined questions as a first priority?
So as for your questioning if you receive straight answers .........you never know until you have a go!
Having that "go" should be the initial start to your research & a base to gauge if you will believe or trust in what they say to make your investment decision.