Kev,, as a moderator you may be able to shed light,, I just got an e mail & meesage thro private message:
Macca, I asked this question some time ago and its turned into a med free for all. As an Operator, Instructor and Team Medic there have been many uses and abuses of this sytem. Various "experts" have offered opinions and suggestions either in this forum or by contacting me directly where they have to some degree all differed and have not supplied the definitive answer. As an operator I would like to have the correct and best equipment there is available, as an instructor I do not want to pass on wrong or conflicting information and therefore I consulted the forum to seek the best advice. As member of a well respected group I would like your opinion on the best advice and methods of use of the correct equipment. Without the bullsh...it.! Regards, skyguy skyguy3929@yahoo.com