Used it on one couple of boats, in both cases the sheets
fouled the cockpit
and it was generally a pain in the... well, actually normally the head
and ears, when they got tangled around them while gybing.
The extra friction when easing the sails
in light airs was another pain, as was the additional line in the cockpit
Both boats have since installed travellers forward of the cockpit, one on top of the dodger
, and one forward of the dodger
On the boat pictured the mainsheet is pretty clear of the wheel
, and a traveller is not possible with the aft companionway
, so on that boat it's probably the best solution. Guess it also depends how you sail. Its very annoying in flukey light conditions inshore. But it does help to easily control a big boom offshore
while gybing and dropping the main.
I think a better idea to achieve the same goals of controlling the boom is to fit some sort of preventer tackle that can be rigged where you want it. Rigged aft on the boom to mimic the twin main sheet system, or rigged half way along as a vang. Inshore it can be removed. Or fit a central eye or short horse, and use snapshackles on both sheets
so you can shift between a signle central sheet, or twin sheets as it suits.
I have toyed with a combination system that uses a rope clutches
to isolate or combine port and stb mainsheet tackles. Something like this may be a way to make the system work better, both tackles combined for short tacking, and isolated for gybing or to precisely control the boom position.
Any Photos of what you have now, and what your thinking of?