I am not responding to anyone or taking a side, I just can't see myself checking my race mate's PFD.

I understand that safety is paramount. I do everything that I can to comply and a few more things as well. I admit that I don't know the tecnical differences between the two devices. Why would somebody competing with me give a crap about what PFD I am wearing? Are CE PFD's faster? Am I getting an unfair advantage? Is it just a way to win when you didn't win? Rules are rules, I get that.. But come on... win at all cost? For whatever reason?