RE: GP GEE BEE
I managed to cartwheel my beast last week on landing. I let it touch down at a pretty good distance away as it was coming at me. When it bounced I had a hard time getting control of it and seeing what was going on. I would recommend that you plan your landings so the plane touches down in front of you where you have a good view of what is going on. It also helps if it is going away from you if you need to go around since you are less likely to make the wrong control input. One other thing. Try to keep the plane straight during roll out. If you let it turn while it is still rolling fast it will hurt the gear when you side load it. If you don't think you have enough room find a bigger field.
I have an OS 120 two stroke in mine which goes through the gas. Make sure you have an ample fuel reserve when you start trying to land. You may need several tries before you get it on the ground. Good luck.