Twistle Rig vs. Poles out headsail?

[Tim Good]

It probably would, as already suggested. That's one of its attractions.

Dam shame I didn't try it. Problem was we didn't get a day in Lisbon with calm enough wind to drop our current Yankee, and hoist the 2nd Yankee along side. They're both huge and we tried unfurling it at anchor and it was leathal. I suppose when you have roller headsails you loose the skill of being able to change sails in the foredeck.

 

[macd]

They're both huge and we tried unfurling it at anchor and it was leathal.

Twistle rig sails should be around 100% of foretriangle, cut high in the clew as mentioned earlier. The length of your poles compared to the mitre of the sails is a limiting factor: 75 to 100 % is the range I've seen suggested. Ours were about 85%.
Obviously larger sails can be used partly furled but, as you've found, it makes them difficult to hoist. I'd also be worried about accidental unfurling without some sort of stop in the system: not something you'd want in a squall.

 

[KellysEye]

>but I do wonder if the Twistle setup would have been less rolly?

As I said when poles are attached to the mast one sail pushes the mast one way and the other pole the other way creating significant rolling, a Twistle rig flies free so significantly and noticeably cuts down the rolling.