Well, the only thing I trust before CC is to load the magazine, rack one in the chamber, drop the magazine, top off the magazine and safely decock the hammer, then take the safety off and then conceal. I own a Beretta PX4 Storm FS compact as my primary CC pistol and I follow this "routine" like clockwork any time I carry. One must always assume any gun is loaded, it only takes one mistake to prove an undesirable result. I don't put any faith in a chamber indicator although my 92 and compact cleary verify one is is the chamber via the indicator/extractor and I generally look to verify. I guess my answer is I already know what condition my firearm is in before I CC and the only thing I would verify from that point forward in a lawful self defense scenario is the target.