I have to agree, deco chambers are not my idea of fun!

When I went through Scuba School at Coronado, they first test you in the chamber to see if you experience any problems at the deco pressures. Even though I had no problems, I found the experience a bit uncomfortable.

My original point, though, is just that for twenty five years or so I always thought my HeV was entirely superfluous when in turns out that it MIGHT be useful for me too someday.