Using Overprint Preview to proof the display of spot color transparency

I have some simple shapes here, but I'd like to make them look a little bit more …interesting so I'm thinking about using Blending modes. …But, let me give you a little caution. When you're using Blending modes in …Illustrator and they're involving spot colors, Illustrator doesn't always tell …you the truth about what's going to happen. …First of all, let's find out what's going on in the file. …If I go up to Window in Separations preview, and then turn on Overprint …Preview, then I can see what colors are used in the file. …Now, I know there's no cyan image on yellow. …There's black, and then a spot green, Pantone 339, and a yellow, and an orange.…

So, it looks kind of dull, so let's see what happens if I start using some …Blending modes. I'm going to turn Overprint Oreview back off. …And then, I'm going to select this orange flower and see what might be interesting. …How about if I use Color Dodge? Oh, that's kind of cute. …And then maybe my yellow flower, I could use Soft Light. …Yeah, that's sort of nice. I still see the shape, but it sort of …