I have about 10 cards that I want to get graded in order to sell them. Beckett is in my backyard and they are having a grading open house at the end of the month, which removes my hesitation to mail the cards. However, I wondered if there is a better company to use, for whatever the reason, that using company A vs. company B and getting the best value out of the cards.

Is there any perception that having a PSA grade is better than Beckett or vice versa. Is there someone else I should be looking at?

Two are MJ rookies and another is the Bird/Irving AS/Johnson 1981 Rookie, so some key cards that I want to make sure get me maximum return.

If Becket is ok, the two Jordans are "pre-graded" by Beckett as 8 and 8.5...should I present them blind or keep them in those sleeves. Would there be any reason for the grades to differ this time around?

Thank you in advance for your opinions.