I'm not sure where you're at in your drug career, but if you ask literally any veteran junky or any experienced drug user for that matter they will tell you to stay away from fent. The most experienced will tell you that as well as how shitty of a high these RC fent analogues are.
It's nothing like heroin. It's like if you sucked the enjoyment out of heroin and then added 3x the side effects. That's fent... it's not fun man. People die after taking just ONE of these pills. There are hot spots.
I'm not sure if you realize how little 100 micrograms is, while at the same time you are TRUSTING the idiots who pressed these pills didn't give you 200 micrograms.... it's like trusting someone will pick up some sand off the beach and only hand you ONE grain - if 2 drop off his hand you die. That's not that far off from the truth of these pills.