hi Di,

I have a couple of kults, a 6.4 and 5.3.

i am a big fan, they are light in your hands and fast on a reach for a wave type sail. i find the wind range excellent, they can be set fullish for power or tight for higher winds.

with the downhaul i really load it up. give it enough so that it starts to fall away at the third batten from the head. even more in stronger winds.

then set outhaul full for more drive tighter when getting overpowered.

I have KA kults, kaos and formula sails plus have sailed the kontenders as well. with all of the KA sails i have found there is a definate sweet spot. but you need heaps of downhaul to find it. the way i have found you can find it is to go for a sail. if the sail feels heavy then you need more downhaul. if the sail is hard to control then you need more outhaul. once you hit the sweet spot the rig will feel very fast and light in your hands.

the KA website has a good faq section about rigging, and even has a photo of a Kult rigged. plus i find the setting on the sails to be very accurate.