I am new to the DIR thing. I admit that a lot of the dive agencies now are about churning out divers. I got my original OW cert through NAUI in 81. I did Naui AOW in 84 I recently did PADI AOW with a friend and it seemed to me the standards were a lot higher back in the day. I am all about being safe and learning. The only DIR guy I ever met was not a good advocate and was very aragant. I chaulk that up to a wanabe. In my life I have found that those who are truely good at what they do do not push it in your face. DIR is intresting and I would like to learn more about it. Could someone explaine to me why it is believed that DIR does not work in cold water? The question is not meant to be confrontational. I just don't know enough about the concept or why it is felt to be only effective in warm water.