Battery relocation for HANDLING (not drag) - best spot to mount?

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you've kind of hit the wall with trying to stay within your tire choices.

You are absolutely right about that. Honestly, I’m ok with not having maximum grip. I know I won’t get that so long as I cling to the “proper” (my opinion only) diameter wheels...but a tire that is dynamically stable, predictable, and responsive is good enough for me.

I hold out hope that Avon will bring over those sticky 60 series tires or that some other brand will come up with something decent. In the mean time, we get what we get...and it just emphasizes the need to optimize weight distribution, IMO.