BTW, I've used PSP with the Great Planes' REAL FLIGHT G3 simulator. That sim allows you to paint your own designs on the models in it. When I got back into RC last year, I wanted to work the rust off my thumbs with a sim before risking any balsa. But I also wanted to "fly" the models that I was building.

I had a Phoenix Sukhoi and a World Models Ultimate I was building. Their paint schemes weren't in G3. So I took about a half hour and painted them into the sim. It's BIG TIME kewl to fly your real models in the sim. And PSP did the job easily.