@fred2, you have a unique system I haven’t seen before. I always enjoy new types of mnemonic systems as they challenge my analysis of systems I’ve done and see if they fit or not. Yours does.
It’s a variation of the PAO, or a synced peg system, where all of the columns, or sets of pegs, are related back to one column, that of the subject like Ozzy Osbourne. The other main column headings of the system in a PAO, of course, are action and object. Some people add a location column (PAIL) .
You have added the strongly related subject column I think. It could be called the partner column as well since spouses are partners, as in Ozzy and Sharon. Then for Hitler you might use Heinrich Himmler. And for Chuck Norris you might use Lou Gossett Jr. or Clarence Gilyard and so on.
You also added the strongly related subject’s action and the strongly related subject’s object columns. You could continue the expansion of the system to include the strongly related subject’s favorite food or the subject’s dog or cat. There’s no end to adding columns to a synced peg system as long as they all connect back to the subject. The rule you choose determines which order you use them in for converting numbers to the image.
The pros are that you have less subjects to identify so it looks good from a design efficiency standpoint. Variations that expand the basic one column peg system are all tempting. They all decrease the rows at the expense of increasing the columns.
The cons are that you increase your associations that have to be made during conversion of a number and when converting an image back. (What was Chuck Norris’ partner, Lou Gossett Jr.'s best film?) That increases the mental load. That makes it less effective in competition and in general. Even the standard PAO suffers in competition to the point where top competitors have switched to using a single-image system. I did a detailed analysis of number peg systems to prove that the mental load was higher with a PAO just to make sure.
But systems are personal preferences and I’m just a systems analyst and a teacher. It’s fun to work with a system like that if you have a rich background with people through entertainment and history, exploring new details about people you know.
Also, I would recommend renaming this topic to “A new PAO shadow system” or something similar since it’s really not about the Dominic conversion system.
[EDIT] - This topic and the fact that I’m working on peg systems in general for my exercises, has led me to ditch the synced peg system term. If all the columns are “synced back” to the subject column, you have a subject peg system. When you fill out the action, item, and sometimes a location for that subject, it becomes a visual sentence. And the selection process for building a new sentence to convert chunks of digits is a type of rule for visual sentence construction which is another step in the PAO process. I updated my glossary to adjust for that.