Posted By:
Judge Dred (Fred)King,
If it's PRO encapsulated then there's a very good chance the card could be trimmed. I wouldn't submit the card in the PRO holder for a crossover because there's a good chance it will be rejected (guilt by association).
I've submitted cards to PSA that were rejected for being trimmed. I resubmitted some of those later (back to PSA) and they graded them with 8's the second time around.
In a lot of cases it just could be a matter of "when" the card will grade rather than be rejected as trimmed.
Everyone knows the saying about cards and slabs... "buy the.... "