Variation question

What sort of documentation does PSA look for in order to have a variation recognized? I have several 1953-55 Spic and Span postcards with a variation that is not documented in SCD. SCD currently lists these as either having a player name, stats, and Spic and Span advertisement or blank. The cards I have found have a sticker on the back that reads "Brills and Spic and Span are a double play combination that's really big league". Given that PSA has yet to grade any cards from this set, should I even bother with trying to get them to holder a variation? Brills (now Brills Brothers) is a garment company in Milwaukee.
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Comments
Bowman Baseball -1948-1955
Fleer Baseball-1923, 1959-2007
Al