What did you want to know??
BTW, the current Corsair trimarans can not be called F-boats, since Ian Farrier no longer allows Corsair the use of his name since they parted ways about 10 years ago.
The Corsairs are really fun boats, but they tend to be very wet boats for the most part. They're quite fast as well. Sailing in the teens is not unusual for them. However, they're typically fairly spartan in terms of how they're fitted out—camping stove, porta-pottie, rather than a full galley and marine head—since they're mostly designed and used as racing boats. Both the Corsair 24 and the Corsair 28 are raced as One Designs IIRC.
Another boat you might consider is the Telstar 28. Unlike the Corsair 24 and 28, it has standing headroom of 6' through much of the cabin. While the Corsair 24/28s are specifically designed for racing, the Telstar 28 is designed for cruising.
A third choice is the Quorning Dragonfly, but they are very expensive compared to the Telstar and Corsairs. Quorning just released a new Dragonfly 28, which is available in two editions—the touring and the racing versions.
Some of the Corsairs have a rotating wing mast, others use a fixed spar. Also, most of the Corsairs have running backstays, but no real backstay.
Be aware that the Corsairs can not be kept in the water with the amas folded.
The Farrier-designed folding system requires the amas tip down and inward as the akas (crossbeams) tip outward. This means the topsides of the amas end up in the water and the topsides will get growth on them. This means you can't keep the boat in a single slip. Most Corsairs are kept either on lifts or on a mooring.
The folding systems of the Dragonfly and Telstar allow the boat to stay in the water with the amas folded. However, the Dragonfly's Swing Wing system extends the length of the boat about 3-5' depending on the boat, and makes it more expensive to keep in a slip.
The Corsair 24 has been replaced by the Corsair Sprint 750 (7.5 meters).
I believe this happened last year or the year before. Also, Corsair moved their production offshore to Vietnam a few years ago, and there have been some quality control issues with the boats built in Vietnam as I understand it.
The Corsairs are designed to sail with one ama airborne and tend to be a bit less stable at anchor than the Telstar, which is designed to sail normally with all three hulls in the water. I'm not sure about the Dragonfly 28, as I've not sailed on one yet.
The Dragonfly and Telstar are centerboard boats, where the Corsairs are daggerboard boats. The advantage of a centerboard is that they kick up if you hit something, daggerboards don't. The daggerboard trunk and daggerboards are susceptible to severe damage if the boat is going fast in a collision.
BTW, Tony Smith (the designer and builder of the Telstar 28) is taking a sabbatical and the Telstar 28 production is currently halted. He is in the process of building a custom Telstar 28 and taking it up to Alaska and sailing down the West Coast of North America.