Quark fried, blown capacitor...

[suicideneil]

Dude, cool. What were the specs o the original caps again vs the new ones?
As far as supporting the gold connectors goes- if the pcb is braced nice and firm inside the esc case, then all that needs doing is bracing the battery wires close to the esc case too = zero flex near the esc will mean no stress on the pcb. I would ziptie down the wires to part of the chassis or a custom little 'mount' just along from the esc, and make sure the esc is mounted solidly too, then you will have no problems what so ever. The main thing is to prevent the pcb from shifting in the case, and stopping the wires from flexing near to the esc- a 'no movement zone' if you like....