I agree with the short term sub treatment, I went from 8mg a day to 4 a day to 2 a day in five days then stopped. I then went into sub withdrawal for maybe 12-18 hours but it was very bearable. However I was in an inpatient program and I'm not going to lie, if I had to option to hit up a dealer and pick up, I probably would have during that time. No matter how you do it, quitting opiates is going to take some serious mental toughness, so I recommend just getting off the subs as quick as you think you can.