CRM for single pilots is not a bad thing. It's a bit like taking a refresher in Defensive Driving - with the right attitude, you'll learn something. With the wrong attitude you won't.
On a hopefully related note, I just read of people failing the test for being a forestry-approved pilot because they were unable to complete a weight and balance form within 30 minutes... Doesn't that say something about some of the resources we all need - like training?