Excellent!
A great side benefit of this is how much cooler your regulator & stator will run (and last longer)
Like I said before, this mod cannot hurt...worse case, it'll do nothing but, I have never found a single bike (or car believe it or not - a car would take bigger wire) that this doesn't show at least some improvement on.
Your battery being flat @ 12.1 indicates either a tired battery or a small draw some where...watch out for that before it leaves you stranded.
