I'm in the process of doing the same (or some kind) of mod to this light as well. I currently have it dissembled and posted a possible mod here (post #32) using Techjunkie's multi-AMC7132 circuit. He responded it could feasibly work provided I reconfigure the circuit with a bypass since 12A would likely fry the stock switch. He also suggested to use IMR cells for this application due to the high current necessary, but was really not keen on having parallel batteries due to the potential of uncontrolled cross charging. A better config would be to use 6 separate boards, but that would require some pretty skilled soldering and cramming them into the driver cavity.
I am open to any ideas here...
