[EricH]

Speaking as a technician who has to deal with the results of engineering, I couldn't agree more on communication. And remember, it's a two-way street. The technicians who have to deal with you will probably not accept a "it's good as it is" if they have to spend extra time dealing with whatever you didn't account for. (And if they deal with what you designed a lot, they probably know where its weak points are at better than you do.) But if you listen to why it's not what's needed, and how to improve it, and especially if you do something about it, the techs are going to listen a lot better, and work with you a lot more, than if you simply dismiss them or don't listen.