Shields are pretty cool, but they can be annoying for repping ships that have taken on damage. As the technobeam can't get past them, without some help from little am-cannons. I propose a computer brick for the shields that will raise them, and lower them--and maybe even mod their characteristics on the ship (balancing buble size, power draw, and field strength.) That way they can be optimized for a particular ship when they are on, and can also be turned off when massive repairs to the hull are needed.