Hi,
I really appreciate the effort and inventiveness of the files I've tried here. I am a hard person to take into trance, and the files I've tried here have worked about as well as any I've tried. Which is to say, very well, relatively speaking. I want to thank you all for making your help here available (for free, no less), and for your concern for helping people like me get their trance on.
I did, however, have a few suggestions that may be of some use.
First, I'm sure you know this, but the sound quality of the vocal parts of these recordings is not as good as it might be. This sometimes affects my ability to actually understand the words being said. This is independently of the effects of trance, I think. I don't know, but it's possible that the solution might be as simple as just a different cheap microphone or different program for recording the sound. It could also be that the files are too compressed for their own good. It's not something I know much about, but I do know that using Audigy (a free audio mixing program) and a relatively cheap microphone and a cheap soundblaster external sound card, I"ve made other sorts of recordings that are easier to hear.
I find that Elena's deep breaths are much less deep than mine, so it is hard to match her rhythm at that point in the recording, so perhaps if it slowed down there a bit, it would be easier to stay in sync.
There's a bit of a confusion deepener with counting in the middle, connected to a kinesthetic activity. I think that if you want to induce a bit of confusion and fatigue, it is more likely to be effective if the grounds for confusion are more severe and ... confusing. And perhaps varying the cadence there would also be helpful -- to help throw off the conscious mind from its tracks. Confuse by being confusing, rather than saying that the subject is confused.
These are generally minor suggestions. On the whole, I think the file works very well, and I hope you can do others in the same vein, or builing on it, since it seems to work pretty well for me.