Ah, a "Capt. John" article, the man behind skippertips.com, where, for as little as $48/year, you can learn a lot more great tips like this, thanks to Capt. John's years of experience...
that he has apparently learned by asking questions on FREE sites and regurgitating the info for his gullible subscribers.
For example,for $48/yr he will provide you with his experience sailing catamarans...once he gets the info he needs here:
Catamaran Characteristics - Sailing Anarchy Forums