[MikeDubreuil]

I'm going to say don't bring them back. Two reasons: weight and a uniform place to look to determine robot color. Weight is obvious. I found it much easier to just look above a robot to see its color rather than stare at a robot to see where they hid their team light. Teams were supposed to make their team light obvious from 4 sides, but we know how well that kind of rule is followed. The new flag system is great because their is an exact position for the flag.