Simplicity of Sail Systems

[BillAU]

G'day mates,
I read the following "Simplicity of Sail Systems" at:

Kisscat - KISS Sailing - Simple, Straightforward, Stressfree, Sailing!

And since I freely admit to knowing very little about sailing (just enough to be dangerous) I thought I would ask your advice on this rig/Sail System.

Simplicity of Sail Systems.
Rigging style is the choice of each purchasor, however it's our recommendation that for simplicity sake, purchasors consider operating a sailing rig which doesn't incorporate a mainsail. As an alternative we suggest twin furling jibs and an inner staysail, connected to the forward hulls. This setup is incredibly simple to set and furl - and when directly downwind can be set wing and wing. The advantages of this setup are significant - less weight, less winches, no travel car, no complex reefing systems and finally no boom and therefore no boom accidents! It is our experience, that sail hassles always come from the mainsail!

In bad weather conditions consider the logistics of reefing and setting a mainsail....
First, you have to pull off course and head into the wind.
Second, you have to physically go on deck in potentially dark, slippery and windy conditions to make the necessary adjustments.
Third, the exercise is time consuming to do alone and ideally should be done by two people particularly in dangerous conditions.

Compare this to the suggested rig - no course change required, no need to navigate a dangerous deck - and one person can pull a single rope to make the necessary adjustment. We ask the question - is all this extra effort and danger worth it? All the additional cost and complexity of a having a mainsail would only provide 1-2 knots under ideal conditions in any case, as the twin jibs will give you 90% of your sailing speed. We say if you need to set a mainsail - then start the motor!

Consider also that cats don't sail well to windward. In reality, bashing into windward conditions is so hard that very little cruising sailing is ever done into the wind. If you find yourself having to get to some windward destination by a certain time - start the engine! Think about how far could you travel, if all the expenses of setting up the mainsail and associated systems was spent on fuel?

Finally - To effectively be able to sail away from a lee shore in heavy conditions, or have the ability to hove to, requires a sail plan which moves the centre of pressure aft. It is our recommendation that the sail wardrobe contains a storm jib and a trysail, which can be cleated off aft for this purpose.
End article:

The above Sail System is for a 42ft Cat and seem to me to make a lot of common sense, do you think the same Sail System could be used on a 40ft Tri or a Mono?
I know what a furling Jib is, so “I'm guessing” twin furling jibs are mounted one furling jib is mounted as normal, then about two or three feet behind the first one you would mount the second furling jib but I have no idea what a stay-sail is! Nor if my “guess” is correct about the twin furling jibs.

Can someone please explain the above sail plan to me, a novice, or better still, if you run such a rig, can you please post a few pictures or drawings.

Thanking you for your advice.

Calm waters and great winds to all.

Bill AU