Looking for some tips on what to look for beyond the packaging, to be sure I got the real McCoy. I had got a box of LGC MD'O #4 and a 3 pack tubed PSD#4. It all seems legit, smell, taste, construction. Yet CC's are new to me, so what do I really know? Just want to learn what I can so I can be better informed and be confident with future purchases. Thanks all.