So if I’m understanding right, using this strategy you need a full PAO sequence to encode a single card when memorizing? Person is suit, Action/Object is value?
If this is correct, I don’t think its going to be very useful. It’s very inefficient since you need multiple elements to encode a single card. Usually the benefit in using a system is that you can encode a single card with a single element, then combine those elements to encode multiple cards in a single scene.
Many people use a PAO system for cards where each card is assigned a PAO set. Then you use three cards to determine the P, the A, and the O of a scene. This way you can encode three cards per scene. In this way, you can memorize a full deck of 52 cards across 17-18 scenes for a total of 52 encoded elements.
There are lots of ways to organize an existing 00-99 PAO for use with cards. You can use ranges to take something like 00-13 for spades, 20-33 for hearts, 40-53 for clubs, 60-73 for diamonds.
Or you can use the suits and values to determine the associated numbers. There are a few different ways to do it. I laid out my approach in a post here: PAO Card System vs PAO 0-99 - #11 by TheHumanTim
The upside of this is that if you already have a 2-digit PAO, you can easily use those images for your cards too without having to learn any extra images.