Basically the paraliminals work just fine without entrainment. In fact your mind goes to the most appropriate level by itself when using paraliminals and this can be different for each session.
Because they don't already have entrainment embedded in them you can combine them with your own as many have already done. So you get as many varieties as there are individuals experiementing with them.
From time to time I personally use the paraliminals with a Light and Sound device and other times just the tape alone does the trick.
Alex
