If you need some advise on tuning your catamaran check out the links below:

The Hobie 16 Tuning Guide

The Hobie 16 Racing Tuning Guide

Raking the Hobie 16 Mast

The Hobie 14 Tuning Guide

Hobie Tech Help (Great Resource)

The Hobie 17 Tuning Guide

The Hobie Tiger Tuning Guide

The Hobie 18 Tuning Guide

The Hobie FX-1 Tuning Guide