Last month at a small boogie in KS we loaded an old rig with one and dropped it in the middle of nowhere from 2K and watched it fire and deploy. The Cyprus was 4 months out of date. Not only was it educational, but fun as well. It basically has no worth other than a paper weight, so if it an be done safely, why not see how beneficial an AAD can bee. It's a gift, I don't try to explain it.