Just did another CRM refresher at Flight Safety.
It is oriented towards the 2-pilot crew, and as I was the only single-pilot operator on the course, they just said "do as best you can, you are not really on your own - your crew includes the people on the ground."
Fat lot of help they are, when you need three hands to carry out some of the emergency procedures.
Sometimes, the advisors to people like RFS and the electricity authorities, have all the right intentions, but they put in requirements like Quality Assurance. Everybody has seen this specified in tenders, but how many of the tender-winners, i.e. the cheapest price, have got QA?
Requiring CRM for single-pilot bucketing ops is not really logical. And as T McG says, how does the pilot know that his spotter has been trained? HOW does the spotter get trained?