ive never seen black tatr until today, usually get powder and was wondering how much more you have to do in comparison, mean how much does a half g of black tar break into dose wise, lets say for a mildly tolerant user

Mildly tolerant eh? Something like 5-8 would be my guess, depending on how mildly you mean. Tar is not that much weaker than brown powder, its basically just hydrated brown powder. If you do .1 g of powder to get high, then you'll need about that much tar, just a little bit more maybe.

just take off like a .1 and cook it up in shot if you ain't ho with it