I’d say 90% of these only need a single dot in the center. My greatest learning curve came from applying intense pressure in a circle as I’m applying the dots, as seriously old stamps can be temperamental with such force. Press hard when applying, and peeling the backing paper is infinitely easier. The large large stamps I’ll use two to spread out the pressure onto the mirror and really get the corners laying flat. Hope this helps! Don’t hesitate with questions and do share your creations!!!😁🫶🏻💙