Since the topic of this thread has been derailed several times, I would like to call the question.
The OP had problem breathing during the dive, and he wondered if the fact that he was breathing nitrox had any part in it. The responses assured him that the nitrox did not matter and suggested possible reasons, most popularly a valve that was only partially open.
Unless someone has something different to say along these lines, I think the discussion on the specific topic of this thread is over and done with. If anyone wants to talk about any of the tangential topics that came up during the discussion, I strongly suggest starting a new thread so that the topic can get the full attention it deserves.
The OP had problem breathing during the dive, and he wondered if the fact that he was breathing nitrox had any part in it. The responses assured him that the nitrox did not matter and suggested possible reasons, most popularly a valve that was only partially open.
Unless someone has something different to say along these lines, I think the discussion on the specific topic of this thread is over and done with. If anyone wants to talk about any of the tangential topics that came up during the discussion, I strongly suggest starting a new thread so that the topic can get the full attention it deserves.