At Robots Live events the roboteer will always arm their robot, roboteers will disarm if safe to do so, if not the arena marshall will do it for example; if its in the pit, out the arena or immobile in the middle of the arena. We agree that it is better for the roboteer to disarm their machine as they know it better than anybody.

I would suggest that the dump and link are moved away from moving parts, ideally next to your bottle valve. I dont see a problem with the power lights.