Mr Sunshine;
There are a couple books put out by Anna Wise that cover alot of technical info on brain waves and her take on it. Tools For Wellness use to carry them but Amazon would also.
Bill Harris of Centerpointe has his own book "Thresholds of the Mind" and discusses Evolutionary Change through the use of Binaural Beats.
Many of the people that seel these type of developement programs recommend they only be used for maybe an hour until you have used them for a certain amount of time, your brain gets confortable, and then up the duration.
Dane Spotts of Mind-Tek and Bill harris have both said they formerly listened for many hours a day when they were in the thick of it. Probably on that journey of self discovery like all of us.
I would say that you can get into a "Overwhelm" state when first starting fairly easy. Until you go through one it's hard to recognize, as you progress it's just another "Bad hair day". The first few of them can be pretty rough though.
I prefer getting the ready made Binaural Beats that come recommended by someone or a company I trust. In this regard "Toolsforwellness.com" has been very reliable to me.
Paul's Paraliminal Series recently was a very big help to me when I had a rather large test/licensing exam to take. It also makes use of Holosync Technology.
Best of Luck to you, have a happy adventure.
Jeff
