I don't have anything to prove, Nigel, that's why 'evidencing' my claim isn't important to me.

These venues I'm talking about are already up and running.

The 'customer' may not notice anything different; I'm more talking about the venue owners and the deal they give musicians.

I will only recommend artists to them, if they fill the criteria of being a decent enough skin and good at what they do.

The customer need not worry.
The standard is always attained....

B.