I can't argue with you at all. When I find someone competent, I am pleased and amazed. I often know more than the people I hire about their tasks, except the day to day details of the install. And still I notice things that make me go hmmmmm. I would call it 50/50 on the subs I have used on my house build. The good ones have been recommended by the guy who framed the place (I knew him from earlier). The rest have been a mix of good to bad. Too many bad for "professionals". But of course as we often say it, "professional means you get paid to do it, not that you are necessarily good at it."...