Personally, i like the dogfighter, for an aileron plane. Here's the good part about spads, though. The fns fuse, and the dogfighter are basicly identical. Build both sets of wings, and tailfeathers, and you can change from one to the other, by changing out the vert stab, and moving the rudder servo to the ailerons.

The corostang is a little harder than most spads to build, but, if you follow the instructions, it builds perfectly. There aren't any mistakes, or omissions in them that i could find. It does help however, to know how to work with coroplast in the first place. Its always suggested to start with one of the pvc fused models to start with, to get a good feel for how to work with coro, as its a totally different kind of build.