I saw the ZDLSKP the last two fridays. Both had CRYX reefers on the end with Railex logos (one on the 3rd, two on the 10th). It looks like they must be leasing CRYX 5850-5899. I guess most of them must be assigned to Washington.
Railex also has a facility in Delano, California in the central valley near Frsno. I imagine that they use them there as well.
You’re right as far as CRYX 5850-5899 having the Railex logo on them. They use them just like the ARMN 110000-series cars on the Railex trains, though they’re more like the ARMN 170000s in size.
I keep hearing that Railex is going to be leasing a few hundred more cars (200? 300? I’ve forgotten).
A photo for reference: https://www.flickr.com/photos/railohio/16538318723
Before the grafitti gets applied