[sreader3]

Last year I sent four SGC-holdered T206s to PSA using the crossover service and only one crossed.

I then cracked the other three out and resubmitted them to PSA raw and all of them crossed (one even got a half-point bump).

I realize my experience is anecdotal but it was enough to convince me that the PSA crossover service is a waste of time and money except where the downside risk of the crack-and-submit strategy is severe, for example, where you have a high value SGC card that you fear might be rejected by PSA for evidence of trimming.

The other thing I would say is that in my opinion (others will surely disagree), generally speaking (there are surely counterexamples), PSA is tougher on corner wear whereas SGC is tougher on centering. So you might fare better crossing cards to PSA that have strong corners and/or worse centering for the grade than you would crossing cards that have weak corners and/or better centering for the grade.