Dan,
The green tape is a lower tack than the blue. The build up at the edge of the tape is controled by how much paint is applied. This is why it's important to use colors that cover well. You can always spray a test to see.
I used blue and green tape on the Skyfall 007. There are photos.
Full wet coats may not be necessary. Couple of light coats can do the same thing as far as covering.
Interesting because I'll never use color dope. There are other ways.
I'm currently playing around with aerosol cans.
I've had no tape issues, bleeding, or thick edges using them. I do scratch everything up. BTW. You can sand a paint edge down carefully.
Now I'm playing around with artists acrylic. I have plenty of experience with this paint.
The Mig-3 will be all artists acrylics.