Have had the chance to try both a couple of times. There is a lot to the assertion that these are the same. The pattern, tape sizes are the same, it's likely they come from the same machine. They differ slightly in feel of the outer plastic but that may be from the printing, Rearz feeling stiffer. The space may have slightly more sap than pulp but this is not a scientific measurement whatsoever.
For some reason I have more difficulty putting on the spaces, which makes no sense. Have found both to be really good, they hold a lot. Had one on from 8 til 4 today including a number 2 and it held up well