I've never done it, nor am I an expert grader, but I'd like to give my opinion.
At first glance it looks like a solid 7 NM. The slight corner bend on the bottom right and the o so slight off centered-ness puts it in that range. PSA may find something else that the naked eye cant see through the scan, but that's always a risk you take with any card.
I also think that this may be in the incorrect forum...