I need a little input regarding the Gerber Spectratone guide. I would say 90% of the stuff I do is using spot colors with solid fills. What I need is input whether or not I should shell out the $300 bucks to purchase one. In concept it seems very valuable but wanted to know what you all thought. I know that is a subjective question, but I don't want to purchase it blind. Also I know I can print out my own version with what I have in stock, but that seems like it might be pretty limited.