[Al Skierkiewicz]

Capacitors are not strictly illegal but they cannot be used for power filtering at the power input to the RC. As an inspector I would also need to see a valid method for discharging the capacitors at the end of the match. Something automatic and absolutely fool proof. Barring that, everything must be insulated.
Remember there is a lot of power locked up in a 54 Farad capacitor. Certainly enough to weld metal if it were to come in contact with something.