Looking ant an APG at the supermarket last ngiht, and they have an article about stock class play. THere is a picture of a guy using what looks like an early carter buzzard (that's the sc one, right?) with a 3oz tank... credited as a phantom with a tank.
(Sad thing is... Ive never owned a carter gun, and knew it in about 10 seconds.. thats his milling on the frame)