Psa gets the most bang for the buck for selling but I really do not care for the qualifiers. Here is a recent 53 Bowman Mantle with a oc that sold:
http://www.ebay.com/itm/1953-Bowman-...d#ht_637wt_902
Then look at this card that does not have a oc:
http://www.ebay.com/itm/1953-Bowman-...#ht_1630wt_902
The psa 7 oc has more of a boarder and the back is centered unlike the psa 5. So I ask how in the heck does the 7 get a oc and the 5 does not?