I’ve heard conflicting reports on this myself, so I not 100% sure if they set Zebra or even Yoke every time. PS, here’s a guide to what we’re talking about for the landlubbers in the group:
http://www.usshancockcv19.com/navalmaterialconditions.htm
Even though I know it’ll be very highly classified for a very long time, I’d love to someday read the report from the SINKEX on the America (CV-66).