I went through 4 or 5 hydro test shops before finding one that would give my LP72s the plus rating, with me giving them the PST document listing the REE.
That PST document is about all we have for the 72s that I'm aware of, and, technically, it's only good for PST cylinders. The misprint sure doesn't help, though, if the "technician" even looks at it closely enough to catch it.