JD,
On a side note...I thought I was wasting my time and money with our dc to dc install last year at the Q, as I have barely used it the past year and a half but I sure am happy I did as we've had so many cloudy days since getting into Canada on our way to Alaska. Each day we travel we get them charged back up in a respectable amount of time. Of course we mostly boondock as you know. I only used 6ga so don't get things through as fast as you but I still have plenty to satisfy me.
John