The first flight of D-668 comparison samples are already sold out

The first flight of D-668 comparison samples are already sold out. Thank you everyone for the enthusiastic response. Looks like we have a winner. We'll need to make another flight right away, so if you want a Davidson-style comparison set that is certified using the same process as the offical sets made by the Army, contact me for pricing. I'd like to get these going before the end of March, so don't delay. The data sheet is here, if you need one.