i've been working with your method for a few days, now, and wouldn't you know it, i'm still making mistakes.
i come in late, can't keep the rhythm, and frequently get lost as to where i am in the piece.
i made my wife, 3 children, 2 dogs, cat, goldfish, and paperboy sit and listen to my version of 4'33".
i needed to restart on 3 separate occasions, just went blank a couple of times, and even found myself humming during the tedious middle section. it took me like 11 minutes to get through, and i blew the ending. my audience was kind, however, for the most part. my wife said she couldn't criticize my tone.
the paper boy said he like the end the best.
would working with a metronome help?
what about mental visualization? every time a try and mentally play the piece, or mentally view the score, i get distracted and think about how 4+3+3 = 10, and why isn't it called 273", or little things, like how i seen many toads in my life, and even more mushrooms, but i've never seen a toad sitting on a mushroom. which is kind of odd, when you think about it. i don't know, maybe "toadstool' was named by someone simply suggesting it would make a good chair for a certain type of amphibian, and not because it was already used for that purpose. anyway, stuff like that.