I guess the instructor trainer who's loop unattached underwater and the several other well-known cave instructors who had the same happen are uninformed? Probably LM and fathom who build better quality parts for the SW are uninfomred as well.Don't listen to any uninformed nonsense about these being flimsy CCRs. They are solid and super reliable. You can do your own maintenance on these units and keep them running for years.
When you put a KISS rebreather up against alot of other commercial rebreathers, it's cheaply built.