I have no experiance with Life flow, but I don't think the Life Flow can keep you in the wrong level just by itself.
As advanced as this system might be, it's no more than an aid in meditation.
Don't expect it to be a miracle system where you just sit down, close your eyes and listen to the music and "shazam" you are in a deep state.
You have to know how to meditate, and obviously you allready know that.
I personally think ( again, no experiance ) that Michael made 10 cd's so that you can get used to the concept of music/sounds during meditation, gradually adding more so the brain can cope.
Maybe it's best to just follow the one month steps for now, and if you notice that it affects your state of mind that you allready reached, or notice a negative result in your everyday life, you could temporarily do an extra meditation the way you are allready used to every day.
But just to be sure, I think you better wait until Michael responds here too
Good luck with your meditation !