Been dealing with Cheyne for the last 8 years. I usually have keel fins available. I order them form Cheyne about 50 at a time. If you want them they are $49.00 plus shipping. They work really good in Longboards without alot of tail rocker and I think they are as manuverable as many thrusters. They work really good on wide tailed shortboards, but they catch leashes.The key to shaping the wide tailed boards is Mccoys round bottom and soft almost gun-like rails almost through the tail. I have 3 nuggets 6'8'', 7'2'' and 8'0'' all singles. The gull fin is more versitile than the keel and does not catch your leash.One thing about Mccoys is they love the pocket and really come alive the hollower the wave gets. I think Surftech is putting out 3 models as well. The best is to get a real Mccoy. He is very honest to deal with and will get your board to you in about 8 weeks. Shipping from OZ is a BEYATCH! There are a couple of shapers in Florida that have done nugget replicas for awhile and have them down really good, but like Geoff says "If it does not have a Mccoy logo on it, it's not a nugget."