Yugioh Finding Holos Secret?

This is not a question but a secret that works. I just recently figured out a secret to find holo cards in a pack of cards. When your at the store and you can hold a single pack of cards scan the pack thouroghly and look for a little dot(it is very VERY small and if you have bad vision you may no be able to see it). It sounded fake to me so i went out to kmart and picked up a stardust overdrive with a little dot. and after scanning through about 15 packs i found one. on my walk home i opened it and i got an ultimate rare. It may be a quincidence(however you spell that) but ive been forced to believe it. I want some of you guys to try it and tell me if it works for you.