Dose - SWIM wants to try this

[IggyPop]

First of all hello everyone
Well SWIM is using Marijuana for quite some time now and has grown very bored of it. So SWIM decided to think about what he is going to try next, so SWIM thought why not go to the hardest thing right away, because SWIM is very curious

So when SWIM gets the opportunity, which is in about a month, SWIM and a few of SWIM's friend are going to try it. SWIM and his friends are complete newbies when it comes to dealing with this drug.

SWIM would like to try snorting his drug and he is planing on taking it only once, maybe twice
????: Drugs Forum http://www.drugs-forum.com/forum/showthread.php?t=81132
SWIM's friend is going to bring 2-3 grams
SWIM is a little bit concerned of the purity levels which were only 10% 10 years ago in his area
So SWIM would like to know how much should he and his friends would have to take for the first time in grams if possible

thanks in advance