We use a thizzle rig, albeit a cheaper alternative.
We crossed from Med to the Atlantic earlier this year on our 410. We bought her for a sabatical trip with the option of selling her her after that. So investing lots of money
just for one crossing didn't make much sense. Of course she only had standard sails
a complete furling gennaker
or spi was out of question for just one trip, that would mean spending a few k EUR just for arriving a day earlier...
I read about the thizzle rigg and like it for its simplicity. But I could not find a matching jib
on the second hand market.
But I ran into a second hand jib
on ebay, pretty light but almost new. It was roughly the same size as the one on the furler
but was a hank-on. For 80 EUR it was a real steal.
I made a temporary forestay of some SS wire, connected to a fixed eye at the top. It had a relatively small bottle screw that connected to an existing hole in the profile at the forebeam right beside the roller furler
. To ensure we could cut it loose in an emergnecy I had a small loop of dyneema
line between the wire and the bottle screw.
When unused we removed it at the forebeam and tied it to the port bow. Rigging
took maybe 5 minutes, cost was 40 EUR.
So I set the Jib on one side and within five minutes I had another forestay where I could raise another jib. Nice and sweet.
These two sails
basically towed us across the atlantic. If we felt overpowered in squalls we just opened the rope
jammer and down the second jib came within a second.
This setup had a much better directional stability than wing on wing with jib and main. Less stress on the autopilot
And it sports two relatively small and manageable sails, which can both be reefed without going into the wind.
Overall a nice setup, but could of course be improved by not beeing so cheap
On the reefing directions, the 410 came with only a small table when to reef, no prosa. But it showed a similar warning not to use the jib alone.
Well, we needed a new topping lift
anyway as it was worn out, choose dyneema
and sheeted it very tight when going under jibs alone.
Never noticed any issues.
My guess is that Lagoon just wants to be on the safe side. Like McDonalds coffee: "Caution, content may be hot!".