If only Zebralight could start using high-CRI LEDs with high run times… Maybe they are already working on it!
You mean… like the ZL H502d? It’s 85CRI 5000K and has run times almost as long as the the new H52 line. Also, it’s a true flood “mule” headlamp, which I seem to recall you liking.
Or there’s the H51Fc (which is discontinued and on clearance), if you wanted something warmer with a pseudo-flood beam instead of full flood.
I’ve been pretty tempted to grab a H502d, but I don’t usually want a mule… A pseudo-flood beam (frosted lens) seems better for my purposes.
It’s only 85 CRI. ;_; But it’s nice to see something other than the ubiquitous Cree. 
I just got the H52 and H52Fw I ordered back in October, and plan to update the review with more details soon.
So far, I can say that the H52Fw has a gorgeous floody beam, and the H52 may be the first “cool white” Zebralight without a green tint. But I’ll show more about what that means with pictures.