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Use different colors on the battery side of the speed controller/spike (e.g. red/black) than on the motor side (e.g. white/blue).
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Originally Posted by GeeTwo
What's the advantage of mis-matched colors? We used all red-black last year, matching the wires. We were thinking of using the colors as labels, but we would have used the same color housing on both sides to ensure we made the correct connection, saving some sticky labels. The biggest reason we didn't do this is it would require that we re-terminate a motor to use it in a different location on the robot; last year we had generic spares with connectors pre-crimped, and just had to add a label.
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In re-reading, I've answered my own question. The point here is not to have the connectors between the PDB and the controller look like the ones between the controller and the motor. That never occurred to me as a problem, because we never use connectors between the PDB and the controller. Except for Ultimate Ascent, where we were jamming too many features into too small a space, we've managed to put the PDB and all of the motor controllers on the same control board, and run these wires directly. Another important thing to remember about connectors of any type is to remember that they are inherently a compromise - giving up some of the reliability of a continuous connection for the sake of maintainability, flexibility, or convenience.
GO TEAMS!