That link has some good knowledge on fentanyl in general. I just put the gel from a 50mcg duragesic on a plate and after a couple hours it dried up until crystals. The crystals can easily be snorted, smoked, or thrown into a spoon and injected.
I've already smoked fentanyl numerous times and the high doesn't last nearly long enough and it's not intense enough to justify the short duration. So tomorrow I will sniff all the crystals to get a good idea on how fucked up it gets me and then according to that the next day I will IV.
If anyone has done these methods let's hear some feedback. I will post my results tomorrow and then the day after.