[apalrd]

I've seen harnesses where all of the wire except the main battery cable to the fuse panel is 18 or 22 gauge white, labeled at each end with paper and clear heat shrink. The harness had very few issues, especially for how it was treated.

I've always interpreted the rule such that any load-side connections between a relay or victor can be any color. We had a specific instance where we used multicolored 14 gauge automotive wire between the Victors and the motors mounted on our turret, to reduce weight over the 12 gauge red/black zip cord we usually use. The weight savings were significant enough for us to do it during the 6 hour unbag window between two competitions.

Maybe the rule should be re-written to exempt low voltage sensor wiring (6v or lower) and all switched circuits. As it is now, Jeff's situation would have been legal (IMO) by the letter of the rules if you had used a spike relay to control the pneumatics instead of the pneumatics bumper (as long as the ground was black or blue) which makes very little sense.