During the day I listen some hours to the Primal masked version. And during the night I listen to the normal ultrasonic version. Now I want to start listening to Primal xxx during the night. My question is can I listen to the ultrasonic xxx version and the masked version? I ask this becasue the experimental sub is build differently, and I thought this might be confusing for the subconscious mind if I listen to the same sub but with 2 different build methods.
And do you guys have information about how stable Primal xxx is comparee to the normal version?