Questions
How flat are your cards? If you place them face down on a table, are they perfectly flush, or is it like 90% flush? How about with sleeves?
I have been double sleeving my cards to keep them minty. They are quite flat, yet they do have a little bowing, with the four corners of the double sleeved card touching the table yet with a little airspace between said table and the center of the card. Is slight warping, bowing, or arching natural in cards?