3W Fun Xtra - Aaarghhh!!
I have one of the 3W Xtra Funs as well, with the 3W-24 and canister. All up weight is 11lbs with no nose weight. The rudder is setup pull pull as well. I can't comment on the building since I picked this one up from a fellow pilot used, but it appears to be well put together.
What I can comment on is the flight characteristics. I've put a few flights on it now, and mine hovers around 1/3rd throttle. It has incredible control responses, and feels like it weighs 5lbs. Even with the extreme throws this bird has, it can still fly a very nice precision pattern if dialed back. Let the sticks fly, and its a very nice and light gas fun fly. I've also flown the DiablotinXL, and in my opinion, this one flys better 3D. I think the wing design differences has a lot to do with that. Blenders and knife edge spins really look particularly nice on this plane. I appreciate the longer tail moment in some of the maneuvers as well.
Out of curiosity, what prop are you running on your 3W-24? I've got a 18-8 on mine, but I need a 19-8 or 20-8 instead since its just about over the max rpm figures. I assume you have run this airplane quite a bit since your last post was in Dec.