I don't mean to critique specifically; I like the idea of being able to train memory skill; but on a meta level - maybe an invested approach in searching for or finding the effective methods of memory upskilling would be more valuable than just trying this.

For a baseline maybe include a testing process, or tracking system so that you can evaluate the ability to keep making progress in the area. Also make graphs. Try to add notes that include what might recently affect ability. (some things that I can think of right now include - time of day, sleep, coffee or sugar consumed, prior or post exercise)