I just have to ask. If running all of these caps is so beneficial, why hasn't this been visited before?

It seems to me, that if there are so many benefits to running all of these caps, you could just solder small copper posts or bars on the rather large solder pads of the quark to accommodate four or so capacitors and then solder the battery leads to these bars.

As for the arcing, I run a junction box of sorts on my truggy and facilitates quick battery changes. The esc and battery connectors plug into the junction box to complete the circuit. If I run my fans from the junction box, the fans should drain the caps when I disconnect the batt and prevent the arcing when I re-connect the batt. Is that right?