See I don't see the opiate cycle the same way but ABSOLUTELY respect those who do. To be clear, most people end up in the cycle mentioned above, and I still crave opiates every day, but for me it just didn't end the same way. I was doing opiates of various forums, first pills when I was young (12, long story) to a gram of heroin a day and injecting dilaudid and oxys at the end for more then a decade. For me, I moved to another state, oddly enough came back into a solid source of oxys for another 5 or so years and the supply dried up again. I still crave them every day, and I still have my abscess scar on my arm but they just arn't available to me easily other then some tramadol I get from my neurologist a couple times a year. I know I could go get them again, and yes I want to every day, but one I don't have the money and even then I know over and over the road that leads down.
It's the GABA agonists that got and still have my ass. I still say the worst WD I ever had was not from Heroin and Oxy or Xanax but from Gabapentin.
But that's only my experience.