BryanW,
Here's another idea that should go along with Dons advice. You can hold your tubes open more or less continiously (at least on land). Listen to the sound of breathing through your nose, sounds pretty quiet and outside your head. Then equalize, open mouth seems to help, breath through your nose and listen for a loud roaring sound inside your head. When you hear that sound, your tubes are open. Practice keeping them open, should help the process.
Good luck
Connor
Here's another idea that should go along with Dons advice. You can hold your tubes open more or less continiously (at least on land). Listen to the sound of breathing through your nose, sounds pretty quiet and outside your head. Then equalize, open mouth seems to help, breath through your nose and listen for a loud roaring sound inside your head. When you hear that sound, your tubes are open. Practice keeping them open, should help the process.
Good luck
Connor