I wouldn't get too hung up on the DPA. There are many walter mitty types in GA, and some of them are instructors. I have met some myself. An FAA type database would be an excellent thing, and nowadays you can withold your mailing address from being shown, which is something you can't do with G-INFO (unless the plane is held by a Ltd Co etc in which case you stick your accountant's address in there... but then he gets all the garbage mailshots
