Update on the bars at 790--they are comfortable but really bad on tight switchbacks. So, I moved the grips in to 770 and might have found the sweet spot. Quick response especially in corners but still stable. I'll know this weekend when I'm riding a trail with the most horrible tight switchbacks; same trail I rode last weekend and made me realize the bars were too wide so I'll have a good comparison.
It's interesting how much what I'd call fore/aft balance is affected by bar width.
Another notable takeaway is hand pressure. Wider is definitely easier on the hands.