Humans are not always accurate at measurements. I recently got a table top that came with an attachment. Table top and attachment are nearly of same size and rectangular with four screw holes near corners to attach, although the holes are little disoriented(same size but at slightly different positions on table top and attachment although they are at correct distances from each other independently) and screws don't fit exactly into them. So should we fit the two adjacent screws first or two diagonal screws first?
(Black one is the table top, Red one is the attachment.)
Which one would be easier?