Well......From a "Build" standpoint, the "Edge" two/piece wing mounting design is very unconventional & cumbersome, a nice clean tube mount, IMO would have been more simple & accurate---It may be that a tube mount is cost prohibitive to sell at that price, if that's the case then IMO I would just prefer the conventional one/piece wing like the "Extra"---From a "Fly" standpoint, IMO the "Extra" has a more stable & solid feel, all the way to the runway---Now, having said that I will also say they are BOTH a real BARGAIN!, considering what you get for your money---These are opinions, mine----Again I have both airplanes