Geez... All you have to do is say, I promise not to go below 100 ft, and will program my computer to 32% oxygen.... Why should anyone care what card you carry?
How many nitrox users actually test their gas??
????????
![Shake Head :shakehead: :shakehead:](/community/styles/scubaboard/smilies/shakehead.gif)
Hopefully all of them. Would you want to trust the dive shop with your life?