I've tried several different props on mine, and have settled on a 12x4. I'm running a OS .46SF and it has great vertical. It really slows down to a crawl with that prop, too. The CG is about as far back as I dare, and it still behaves normally. I've been putting mine into upright spins and it does them, but at a nose-down attitude. Just releasing the sticks makes it recover immediately. Great flying plane, just watch out for the wheel pants if you're flying off of grass.

Jesse