I could swear I'd thought of doing that and then something in my head told me it wouldn't work, that somehow it wouldn't do the same kind of outline. Either that or it some how ended up using the same amount of CPU. But from what you're showing there, it looks like it works, the outlines look like the exact same thing, and from what you're saying, it would theoretically use less CPU. So why had I discounted the idea before? Anyway, that's pretty cool and I hope it's something Tony can use!

By the way: You know you've used bitmap editors too much when you see a screenshot like that, and your brain automatically fillis in the animation of the dotted selection outlines. I kept thinking I saw them move out of my peripheral vision.