How the "Oyster Playing Cards" marking system was created:
This simple and effective marking system was designed to take full advantage of the powers of memorized deck work. It is super simple and easy to read quickly. You'll want to take full advantage of you. It can even be used to practice like a memorized deck trainer.
You'll instantly know the identify of any card and, with a bit of practice, know it's position and how to cut the deck to reach that playing card. This marking system is the perfectly tool for an memorized deck worker.