Hey guys I've been doing a lot of research on Heroin. Certain terms come up like "caps" or "tens" or "Twenties" that I don't understand. I get that they are amounts but I need to know how much are in them, how much I should smoke/inject/snort for the first time and, whether or not I can smoke/inject/snort different kinds. I'm getting that you should not snort black tar shit. Another thing is that I'm going to try this no matter what, I just want to do it right. Also any other information that you think would be useful would be awesome. But mostly I need to know the amount I should try and how I figure out how much powder that is. Like if it's 66mg for first time users, what do I weigh that shit? Thanks a lot guys.