Had given a friend a d4 he loved it and ordered some d5 from a reputable source. He thought they were fake because they werent as good. and I assured him they weren't fake. The d4 I gave him had at least 2 years on it and I'm sure he ran thru the d5 as soon as he got them. My question is what are the differences because I also told him I don't believe they are entirely the same cigar. I've not had a d5 so I couldn't be sure enough about what he was tasting to explain it to him other than the age and they're probably not the same stick.