You’d have to be clever about the physical distance between overlapping codes. You’d hate to see a 3cm artifact (cut, stain, spill, etc) take out a whole unit/b

You’d have to be clever about the physical distance between overlapping codes. You’d hate to see a 3cm artifact (cut, stain, spill, etc) take out a whole unit/block. (Assuming you’d print multiple blocks on a page.)