The Skipper seems pretty rare. I think it was produced in very small numbers but it is almost identical to the Tomahawk both in spec and appearance. In terms of flying I don't know though, and I haven't come across anyone who's been around one. Like I say they are pretty rare.
Mad Jock - the Marmite description is most justified... few aircraft provoke such strong pro/anti feelings as the humble Tommy... its a shame though that most of its detractors are talking out their fartpiece as most have never flown one!
Smithy