I have been air driving for almost two years now. I work at a small airport and there are limited number of diad boards available, so usually i end up with one of the old diad 3 boards. But on my lucky days i get a diad 4 and find that i can enter all the address info and scan the package before the stop to make a commit time that i may be a few minutes late to. Other drivers tell me they do this as well. Is this frowned upon? I have never been told NOT to do it, nor do i see how this would be deviating from proper methods. I've heard rumors that this is a UPS no-no. But as far as i see it, it is not an error on my part, but an error on the diad 4's.