A big problem with the high performance cats is robustness, they break way to easy. Most Holiday companies won't use them for that reason. That is why boats like your Dart 16 and the Hobie Wave are so popular.

The high performance boats are ok for racers and people who are willing to look after and maintain their boats, but the "plastic" hulls are better suited to the more recreational users.

There are new plastics and manufacturing methods that are beginning to be used with kayaks that may make it into cats one day, such as Vaccuum forming (thermoforming) with ABS, search on the net for Carbonlite, TCS, or Airalite for more info.

Gareth