Another follow-up, if anyone cares. I've been accepted into an organization as a photographer where I'm on-call for urgent shoots, rarely with >12 hours notice. As such, I'm hoping to adjust my inventory so I can have just what I need always in my trunk. The Zeiss 100/2 Makro has now shot to the top of my list, followed by a Profoto B1 Off Camera Flash and a Profoto Air Remote TTL-C to drive the B1. I've been doing OK with my D1 heads, but I don't like having to depend on a power cord, and it'd be nice to go back to TTL flash while still having enough power to drive a 1x3 or 2x3 softbox with a grid.

After that, who knows what's next.