Hi Keith, Robert and Tiffany,
I have been reading this post with interest and it makes me think..... to be honest I don't know the answer either. Tiffany gave you the 'official' response above, which makes sense. Certainly the first time round with BrainEV I followed their instructions to the letter, one session per day with one day off for four weeks, then up a level. To be honest, the results I got were so amazing that I am still raving (nine months on!). Neither did I see any reason to add in extra sessions as BrainEv was already delivering so much. Who says more is always better?
You may want also to consider that individual brains seem to react very differently to entrainment. I loved BrainEv and had such a smooth sail until level 5. I also used Holosync and can't remember one day of smooth sailing - I didn't experience anything at all in session and acted like the worst kind of monster during the remaining 23 hours of the day. See Dreamer's comment about Ohmharmonics (under Coffee Shop), she liked what she heard and then got a cracking headache later, yet no problems with BrainEv.
Tiffany has hit the nail on the head with sleeping being the brain's response to entrainment exertion. I remember being more or less unconscious (cannot say if I slept or not as I just 'disappeared' into the session) for the first or even second week at each BrainEv level. I took my increasing ability to remain awake as a sign of my brain getting stronger/fitter/adapting to BrainEv. You may notice the same trend, i.e. sleep/zoned out at the beginning of each level which decreases over time. In level 5 the entrainment exertion led to me experiencing headaches post session - though this too varies with individuals.
One reason I chose to stay clear of other entrainment products was I genuinely wanted to know if BrainEv worked. If one is two-timing Holosync and BrainEv entrainment, how can you decide which product is working for you? I would point out thought, that BrainEv has the most incredible array of effects. For example in level 5 I 'spontaneously' knew how to cure my body pain - I didn't ask for that, or seek it, but it came. I also didn't do BrainEv to cure insomnia, but I slept like a babe for the first time in years. I liked focusing on one product (BrainEv) and observing how amazing and unpredictable and brilliant the brain is.
On the other hand, Robert has years of experience (and thus may have an entrainment-fit brain!) and has no ill effects to report. Now that I am on round 2 of BrainEv, I mix and match, intuitively decide how much, how long and when. And like Robert, I cannot point to any ill effects.
I hope all our comments help you find the ideal routine for you! May you blossom whichever choice you make. Enjoy the journey, Pure Bliss