Well ive had a chance to look mine over thoroughly. and i see no problem with the 14 inch wing spar that is 1/4 inch thick heavy ply wood. the plane itself was built very very strong. for ARF it is a 10 on a scale from 1 to 10 to me. you do have a choice of putting all your gear in the fuse or mounting the elevator servos in the aft part of the fuse. i did notice the cutouts in the aft part seem a little long for my servos but i will have to wait to see if that is a problem. i am going to put it together and then see where i have to put my gear to make it balence (wherever the CG is).If you have big confedence in H9 stuff this one should blow you away. I personally think their stuff is below marginal. I know ill catch flak for that but i tell it like i see it. If this plane flys as good as it is constructed it will be one of my favorite models.I was studying the glue joints and construction of this plane and they actually used wood glue for most of it. all of the gaps ar very tight exept a little gap in the landing gear block. my wing spar was really tight and i have allready put enough pressure on it trying to slide it in the wing to completely destroy my F90. it looks like i will have to sand it a little to make it slide better for epoxing. I also didnt see a problem with the tank. My u-can do 90 with an O.S. 91 4 stoke will fly 20 min with a 420 cc tank. this one is in the 320 range ( i dont recall the exact number) so for my use i wil try it..with a 2 stroke motor i would suggest a larger tank. All the rest of the assembelly looks starght foreward as ARFS do