Are you calling it momentary or extended though ?
Well, it was an extended momentary absence from the frame
Maybe the set number of seconds is the way to go, it's easy enough to count that whether it's 3 seconds or 5 seconds, I went over. Or if the rule is against exiting at one point and entering from another side, I violate that, too.
This rule is only tough for people that fly alone and have no choice but to use a tripod, an easy way around the whole issue is to get a camera person.
On a side note, I think the VF contest is a great thing, I've been following it for a while, now. Mike, I think you do an excellent job with it, and I want to say thanks for the hours of entertainment that it provides. Not to mention bringing the best kite fliers from around the world together for an event.
~Rob.