[MetalMan]

Why not just capacitors? I'll admit I haven't yet studied inductors much, but capacitors still seem more logical to me. As you stated an inductor in series with the positive rail between the battery and ESC will require some hefty wiring, and that alone would cost more than I'd care to spend (due to wrapping of the thick or high-strand count wires over the core). In another post somewhere you mentioned that it's difficult to get extra capacitors close enough to where they need to be on the MMM, but what about modifying the case to allow additional wires/capacitors, sized/spec'd appropriately to handle excessive ripple current?