English Channel swimming - governing bodies

I made it a goal to swim the English channel in 2010. Everyone has said to book my pilot as soon as possible, so I went ahead and booked a pilot for the neap tide July19-27. I did this without realizing that there are now 2 separate governing bodies for the English Channel - The English Channel Swimming and Piloting Federation and Channel Swimming Association Ltd. I booked Mike Oram from the CS&PF. My question is what is the difference between these 2 groups? Is there any advantage to having your swim recognized by one of these groups instead of the other? Thanks! Kim