[Al Skierkiewicz]

I guess that this is the time to restate my Murphy's Law corollary...
Anything that can go wrong will go wrong,
in the last match on Einstein. Plan for it.
Make things easy to replace, rewire, repair with minimal tools if you don't have a spare. Check everything over twice by two separate people at two separate times before each match. Don't let rookie team members charge your batteries. Use your nose, it is the third most important tool in your toolbox after eyes and ears.
Finally another Murphy wisdom, test it and force it. If it breaks, it needed replacing anyway.