I bought my Air Devil from him off of ebay.. We at our club use it as our " Bomber " plane, pulling 2 streamers. As I fly it ( with an os 25 mounted ) 2 allied planes protect me and 2 axis attack me.. I did mod it to be very much like the battle axe, which a majority of us fly. The center pod is built up ply just like the axe for strength, I did leave the wing as is.
It fly's pretty close to the axe, with the addition of the weight of the built up box and standard servos, the speed is equal to the axe's, although vertical is better on the air devil.