I've been wondering the same thing. Started looking at Andis Clippers w/ceramic blades almost as soon as I got Brody...so many models! Didn't want to stress him by having a stranger groom him. Posted in 'grooming' forums for advice...heard from no one. Took him to groomer instead, and she's great. Looked at grooming school...thousands of dollars and hours away.
I also thought about trial and error...I guess its the 'error' I find troublesome.
