Seamus is showing you his Hog Bipe and his Sig SSE. The Hog has nothing going on in the way of 3-D but it is a great stunt plane. Just having the extra wing would present you with more problems then you may want to handle or have the correct tools to set the wings correctly. The SSE is an easier build. I don't fly 3-D but I have gotten them to hover. Not long but that was a pilot thing. The GP Extra is a great plane in the air and not that hard to build. Sig and GP both have outstanding instructions to make them an easy build but like Jim mentioned, there is a bit more to it then the SIG. Keep the weight down on the GP and your .91 would be a good choice. As I said, I can't 3-D but the GP is another one I can get to hover. The last one I flew had the YS 1.10 in it. I would go for the GP but I have built a lot of planes. Ask yourself what one you like the best and go for it. I'm pretty sure you could build either one.