I'd go by what's posted on the website, not some confusing sticker that needs some interpretation on the esc. They plainly have two sets of specs depending on which motor you're running. How do you cover that situation with a small sticker anyway?
Better yet, call Castle and ask, I've always found them helpful -
http://www.castlecreations.com/support/contact.html
You might be looking at a long wait.......