I got the new amp hour meter installed today. It seems to work very nicely. I have not tested it against my other ammeter yet.
However, I was quite disappointed that it does not handle the regenerative braking / charging the way I would have liked. It simply adds ANY current to the totals on the gauge. It never subtracts them. No matter what way the energy flows it adds.
It should still work for my purpose, just not as well as I had hoped. Here is a short video showing what I mean.