Color class

Heading to a Wella color class today, have never really worked with Wella's professional line. Have always, most of my career used Goldwell. I like Goldwell, I feel it's dead on! Meaning, when I grab for a 6N I get a 6N. I like how easy Goldwell is. Not a lot of mixing to develop the color you want. If my desired color is a red brown I got it already manufactured in their RB LINE. Some of these lines run lighter as well, meaning if I use a 6N I'm really getting a 7 or an 8. Have to be careful when going into a new color line!!! Then of coarse you have your nasty hairdresser's who you ask for help and advice and they will just throw you under the bus!! THEY WANT YOU TO F.... UP THAT CLIENT!!! Nothing would make their day any better than to see you screw up!!!