More than happy to! I have three ABs and two Zs presently, and one other AB and one other Z have passed through me over time.
I won't got much into electronics - you're pretty well versed there, and an FD3 (etc.) in an AB is the same as an FD3 (etc.) in a Z.
For me, it comes down to ergonomics and feel. I just like the way the Zs sit on me, vs my ABs. For what it's worth, I don't presently use the "reach reducing" pin position, though I'm going to start experimenting with it a bit later this year once things calm down.
The neck profile especially on Zs is just
much more comfortable for me. I don't know that it's any one particular difference or a sum of the whole, but overall I play and feel better on the Z than AB. The body contours as well just feel more refined and pleasant when sitting or standing. In particular, large position shifts (ex: going from first position [index finger on first fret] up to sixth [index finger on 10th fret]) just seem more fluid and effortless on a Z. This largely matters when I'm writing or learning new material - I'll be able to learn it to a performance level faster on my Z than an AB (exception being "simpler" music where there aren't large position shifts etc).
Plus, part of it for me is I like how my Zs look a bit more than my ABs, which encourages me to pick them up more often. Kind of hard to put value on that