Using Overprint Preview to proof the display of spot color transparency

This is a five color project, I have four colors, CMYK for my color image, and then …I have a fifth color which is PANTONE 202. …And I have a nice gradient here and I set up a little interaction between that …gradient and the color image underneath, by going into the Effects Panel and …choosing Color Dodge. But I want to be sure of course, that …this is how it's going to print. You might notice that things look a …little ragged. Well, I'm going to go up to View, go to …Display Performance and choose High Quality Display. …Now things look a little bit sharper. And here's a warning, that isn't enough …to tell you the true story about how this is going to print.…

Big caution, and remember this, any time you're using spot color components in …your project, and you start playing with any of those blending modes, worry that …it's not going to image the way it initially looks on screen. …Is InDesign lying to you on purpose? Well, no. …It's not taking the time, or the computational effort to show you …