Downvote me all you want, I did it for ten years and I know what I'm talking about. Take a couple illustrations in Photoshop and convert them from RGB to CMYK a

Downvote me all you want, I did it for ten years and I know what I'm talking about. Take a couple illustrations in Photoshop and convert them from RGB to CMYK and look at what goes out of gamut and looks like shit. You can waste a ton of time going back and forth same-daying samples from the print shop, or you can use a tool that can do CMYK and can utilize the proper printer color profile and have a good idea of what you can do during the creation process.