I am passing on this info in the hopes that it might save someone from getting hurt:
The Liquid Force emergency release is especially prone to getting jammed with sand. My kite went down in the surf while I had my donkey dick in place, so I immediately tried to activate the emergency release to save the kite from getting thrashed by the waves. The release would not move. At this point, I even had time to sit and stare at the release, use both hands, etc., but I could not get it to move. With my kite now getting dragged by the surf, I had to undo my donkey dick and unhook my chicken loop to get rid of the kite. Too late - the kite was thrashed. But what really bothers me is the fear of what might have happened had I wanted to eject the kite because of an emergency for my own safety.
Saying that I should have been better about rinsing the release before going out does not cut it. There are plenty of systems designed by other companies that would not jam with sand. If you look at the Liquid Force design, you can see how easy it is for sand to get between the red plastic and the black plastic, since it is a tight 360-degree fit. My release was down in the water while I was trying to release it, and it still wouldn't budge. This is a poor design for a sport that takes place at the beach and is unacceptable. There are safer alternatives from other companies that LF should emulate.
UPDATE FROM LIQUID FORCE:
Liquid Force will warrantee anyone who has a release that they feel doesn't release properly or easily enough with the new 2009 piece.
Please contact firstname.lastname@example.org
for USA warrantee or email@example.com
for Europe warrantee.