[cdavis]

The frenzel/btv combination is very effective. Your mask provides a bit of backpreasure against which you can frenzel without holding your nose. If you can get your tubes to open with btv, use frenzel to increase the air pressure in your throat and force air into the open tubes. Alternately, doing a poor or "almost' btv makes it much easier to force the valves open with a minimal frenzel. Works good either way.

Connor