Here's my stinger. It's actually not bad on launch so long as you have an assistant for the first few flights. I've only got two on it, but it's very fast, none of the other planes at the field were of any comparison to it. Makes a nice howling whistle that everyone loves from a hollow moldie...
Very fun to fly, takes a bit of nerve on the first flight as your fingers will be twitching and your heart pounding. It launches the easiest off a CAM 5x5, but I like the 4.7x4.7 since it does go faster on that prop, you get longer flights, etc. Land on something better than a short grass runway, I've had the prop catch on landing and turn the plane into an arf again... This picture is after repair, so it survived just fine.