Spectre once bubbled...
Not correct.
"As to side mount configuration, bear in mind there is a DIR way to do it, which I'll discuss later, but the important idea to recognize is that side mounting adds an added complexity to the dive, which is only to be done when necessary."
http://www.scubaboard.com/showthread.php?s=&postid=195516&#post195516
Lets put it this way. I've never heard of a DIR team exploring systems like are being explored in Kentuckyand other locations in the east. I've never heard of GUE teaching sidemount. I've never seen any mention of it in any of their texts.