Authentic means unauthorized there's a slight flaw that doesn't put them in legit sellers stores
and that is the correct order better off sticking with Super Max and Authentic..some perfects are worth the price though just gotta look for reviews on youtube. The reviewers i subscribed to are
Ratchet Reviews - YouTube
SOLEadvisor2 - YouTube
SoleAdvisor does in depth reviews and on feet
Also check youtube for comparison videos.
Like on all the 4's the biggest difference is always the tongue, the lining on the inside of the shoe is supposed to go slightly above the tongue and on reps it barely does or not at all. But of couse wearin jeans no one would ever know