Well I'm originally from the Lilly white suburbs of metro Detroit.
Back when I was first beginning to toke, my friend would basically score from who ever was holding. College kids, poor white folks and the like. What would occur was you'd either get shorted, terrible quality or pay out the ass.
Then we started going to Detroit. We dealt with some good street gangs who ran that shit like a business. Always on, if they were out the reup was ready the next day as promised. Bags were never short, if they were in a different business they would be pros! Only thing that would drive me nuts is being told to park at a certain neighborhood intersection and wait. Usually it was quick but you'd get a twenty minute wait that would drive you crazy. Myself or my friend, both white just chilling in a car waiting. People knew what was happening and I kinda felt bad when an older lady chewed us out. She had a good point, but where else was I gonna get weight at a good price?