Don't think you'll find a kayak that will sail better than a Hobie.
The kayaks feature a strong, purpose built mast socket and a top quality sail with two-piece mast.
In my opinion from someone that regularly uses and sails a Hobie kayak they are great fun and easy to sail.
Hi Dave---I have an Outback--which I sometimes sail. It is difficult to sail in more than about 8 knots of wind --because of the size of the sail---So I have rigged a roller reefing--so I can reduce the sail size--which works quite well. I also found you can't point very high with the fins down as the centre board--so I have adapted a sail board centre board which works really good. The rudder is a bit small --for my liking--but I think you are able to get a bigger rudder now ?
I have had a LOT of fun sailing my Outback since these modifications and sailed in 15 knot winds.
If you want to see how I did these modifications look here>>>>
As Choke says, 8 knots is about the maximum for the Hobie sail. Which makes me wonder why they made it like that.
I have had the Hobie out in a good 20 knots with the Spirit sail and the excess wind just spills over the top of the sail. There is no danger of being flipped by strong gusts of wind. If you want to you can harness that extra wind and hang on for a good ride but you can also release it by allowing the flexible mast stays to bend like a fishing rod.
I'll get some pics next time we go out sailing. Just a bit busy building a new deck at the moment!