Active use of your mind creates neural pathways. If you keep doing the same thing over and over no new neural pathways are created. You have to challenge your mind to create new neural pathways. That's why people who challenge their mind with puzzles, crosswords and brain teasers are often mentally active well into old age.
Passive activities like watching TV does not create new neural pathways to any great extent.
If you want to create new neural pathways you have to use different tools and techniques if you do the same thing over and over you create 'ruts' in your neural pathways.
Personally I do not use holosync and for some reason I cannot even give it away. I have used hemisync and voyager and personally like them a lot better. However for paraliminals I still prefer just the sound and light machine or straigh paraliminals.
Alex