Authentic means its a real Jordan RC but has been altered in some way. Trimmed, recoloured etc I wouldn't be buying it with the intent to send to BGS or have it regraded.
From the PSA site
Authentic Only - This means that PSA is only certifying that the item is genuine, without a numerical grade. This may be due to the existence of an alteration, one with malice or otherwise, a major defect or the original submitter may have requested that PSA encapsulate the card without a grade. The "Authentic" label means that the item, in our opinion, is real but nothing more.
Ask yourself why someone would send a card that looks in ok condition to PSA and not have it graded????
BCCG is Becketts "Collectors Club" grading (and I use the term loosely) . I would be suprised if anyone was sending a real Jordan RC to BCCG. They would be slabbing anything - real or not.
Look for a PSA, BGS or SGC graded card and don't touch anything else.