RE: CMP/GSP Spitfire
You're gonna love this plane Sonnich, and you'll love it even more with a 1.20 4-stroke in it. The sound at full chat with a 15x8 or even a 16x8 is awesome. Someone at our club had a 14x7 3-blader and it looked crap - too small.
This plane was made for fast low passes and big lazy loops/rolls etc.
Pete