220 was abandoned at Minima. The "Charms" were highly rated river boats (although pretty slippy at the Nationals too in the hands of Jack himself and Leslie Brain). The design was midway between the extremes of the banana boats and the more conservative Riant. Brian Appleton (Minima) was very successful in "Wogs" 206. I remember sailing in "Bandit" 202 at Aldenham SC.
Mike Liggett.