[jvriezen]

I'm surprised no one has suggested this scenario:

Your opponent's minibot(s) are faster than yours (or closely matched). Then it might be wise to have your third bot trying to defend the opponent's minibot deployment. This can be done not only by bumping prior to 10 seconds (even if they are at the tower) but also by obscuring their driver's view of the tower so that they may not be able to visually align, or see the tower base lights (if that's is their human based triggering signal.

This will be more useful if it is a high tube scoring game and there aren't many tube points left to be had. MB defense causing 1st and 2nd place winners to be reversed results in a net gain of 20 points. Even if you only fluster the opponent drivers or bot for a fraction of a second, it may be enough to swing 20 points.