I'm brand new at practicing SPQ. I'm VERY busy and I do what I can at every opportunity. I wear an upper partial denture which has metal going across the roof of my mouth just where I'm supposed to put my tongue. I've been taking out my denture while practicing, but I'd like to know if by wearing the denture, I would "short circuit" the flow of energy somehow? I also like to practice "small universe" lying in bed while wearing headphones from my walkman CD player. Of course I take off the headphones when it comes time to do the ending exercise. Does wearing the headphones also "short circuit" the flow of energy?