What event made you head toward/away from DIR?

[Chris H]

Why are they different?  We planned our dive, we have the proper gasses with us, we dive together on a regular basis why would our buddy teams be modified?  That is the beauty of the DIR system is that our dives are the same every time.  I don't dissagree that I would rather, given the choice, have to deal with a problem in 100' than 250', I hope that I've gone down the correct path with my team and we are all on the same page when it comes to handling an emergency.  100' with a deco obligation isn't any different than 250'.  It is an overhead environment and you need to be prepared.  I'm sure as hell not going on a 250' dive with someone I've never been in the water with.     

I disagree that "anyone who wants to go deep and dive safely" will be on a rebreather.  Part of the problem with today is that money can't buy experience.  Anyone who can buy the tech equipment, OC or rebreather, can not necessarily pull off these dives.