My method's a bit different:
Each sheet of cards has vertical 'cutting' marks along the top and bottom of the sheet, and horizontal 'cutting' marks along the left and right borders. These marks extend all the way to the borders. All you have to do is line them up on both the back and front sheets (and optionally, with a sheet between them). If you have a problem doing this, trim through the cut marks on the thicker sheet, all the way around. There are other issues you may encounter that I can walk you through - all easily solvable.
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$co++ Forre$+
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