Most of the time, grading of error coins isn't about the grade... it's for the comfort that they're genuine and to protect the coin. Oft times the description of the error can be off.
Just recognize you're an edge case for ANY of the TPGs.
-----Burton
50+ year / Life / Emeritus
ANA member (joined 12/1/1973)
Life member: Numismatics International, CONECA
Member: TNA, FtWCC, NETCC, EveryCountry (online) coin club
Owned by three cats and a wife of 40+ years (joined 1983)
Author: 3rd Edition of the Sample Slabs book,
https://www.sampleslabs.info/