Hi IA,

Sagan recommends keeping the mouth just slightly open as it slightly relaxes the throat, affecting the throat friction technique, he emphasises the importance of being relaxed with this technique. With more practice you will get better, things like this can be a little clunky to start with. Interesting that you've already had the experience of the spiral/vortex in the third eye, this is mentioned in the more advanced stages of this meditation...it sounds like this could be an interesting practice for you, I'd be really interested to hear how you get on with it. Remember the audio guidance clips in the first post if you want any clarification on any components of the practice.