Hey what's up I'm new here. Live in the West loop downtown and had a great connect on the south side but he got cheap and started making his bags a lot smaller. Got hooked up with a new guy on the West side right off California and wow, what a difference. Dude was a real asshole the first few times but we've come a long way from that bullshit. I've cold copped in the West side when I had to and got ripped off a good handful of times. Will never do that again.
chi-town is one of the US regions where even cocaine has been found cut with fentanyl. dancesafe now has testers specifically for fent and analogues, but 90% of dope at least is cut with fent these days. such a shitty state of affairs.
really the only reason to spike coke with fent is to kill people. Lacing heroin with fent at least makes sense. Having the fent testers for dope is kinda pointless cuz it'd be more unusual to find it absent, but at least you can positively identify the presence of diacetyl with marquis reagent (turns a beautiful purple, the speed and intensity can be used to roughly estimate if it's decent or basically only has enough to test positive, but shouldn't be used as more than a rough guide to see if it's totally bunk or a fent-only batch).
I can say that when I was dealing the people I didn't like got the shit, I imagine it's the same with other dealers.