Maybe a little perspective...
Seems to me that a lot of technology advancements carry some risk, and there will always be someone who is irresponsible using that technology. That doesn't mean the technology is bad, or other, more responsible folks should be denied the technology. This will be...
I use the Castle Creations Parallel Wire Harness (http://www.castlecreations.com/products/castle_parallel_harness.html). They're 10Ga wire with Deans I use them with two 4S4000 packs.
Jack