Yes , I owned a mk 111 and it was a really great little cat .
It ws re introduced years later as the "Family " but this was stretched to 26 ft x 12 ft and even offered with an Aerorig .
at 6ft 4" I always viewed it as a temporary cat , but did a lot of coastal cruising on the south coast of England
tricky to steer into a berth as my particular boat had a fixed position
9.9 hp Yamaha so could not be steered well at mooring
, great in the hulls but hands and knees across the bridgedeck !
All in all a lovely sailing mini cat , I would highly recommend it .