I've just finished reading through your discussion about Heising's methods. And thought I should also give my two pennies worth to the discussion.
I must admit that I haven't had great success with the books myself. However, I do understand and like the idea behind the books. I think it is easier to remember things using mnemonics. Japanese isn't the first language I have studied and I can say from experience that I could often remember certain things from my studies due to mnemonics. Usually they did not make any sense to anyone not even myself as it could just be the context in which I leaned a sentence or some words; e.g. something funny happened the day I learned the sentence or words and somehow my brain automatically used it as a mnemonic.
My favourite example is the Japanese word aishiteru meaning "I love you".
Years ago when I told a friend about the word, she thought I had said " I shit on you". (It is a 100% true story!)
This made me laugh so hard that I almost wet myself and I was giggling about it for days after. It may seem silly to some people, but do you know what, to this day I have never ever forgotten the meaning of this word.
I wasn't studying Japanese back then and I just happened to hear the word "aishiteru" somewhere and looked up the meaning. It was only years later that I started to seriously study Japanese and stumbled across this word again. And I knew straight away what it meant.
So, I do get where Heising is getting at with his books and method. But saying that I also agree with others in this discussion saying that you also remember through repetition. I think both methods are good and the right way. Afterall, there are no right or wrong ways of studying. Anything that helps you to improve and remember the material is the right way. I hope this makes sense