I am just finishing my GP Ultimate and found the kit to be quite enjoyable. As far as wing loading goes mine should come out no worse than any other aerobatic aircraft. You have to keep in mind that there is 2 wings. There small size looks like the wing loading would be quite extreem but, to me, there is no problem associated with this plane. From what I have heard from others with this plane is that the aircraft seems heavy but flies quite lite. I have seen 2 of these planes in flight and saw no problem with the weight. I did, however, see a problem with a lack of power. The .46 just doesn't have enough thrust to overcome all the drag assoicated with all biplanes. That is why I got the O.S. 70 in there, so I can swing a big prop.
Good luck with your decision, Phil (Mesa, AZ)
Oh Yea, If you want to read up on this plane there is a long thread located here:
http://www.********.net/forums/showt...&threadid=2436
It includes another persons GP Ultimate with a smoke system in it.