So I was talking to some friends about the best method of administration for different drugs, and I brought up plugging. They all seemed to be under the impression that it was something that just homosexual meth addicts did at raves or something like that. I set them straight, but I could tell they were still a little weirded out by it. I told them it's only gay if you use another dudes penis instead of your hand.
Anyways, if you don't seem to be getting very high, I'm betting that 90% of the time your bowels just aren't completely cleaned. This is an especially hard thing for an opiate addict to do, considering your backed up all the time.
However, on those rare occasions where I plan ahead and fast in addition to cleaning everything out, nothing can compare so far to it, even freebasing black tar. I find that it's the only real way for me to get any sort of high off of morphine based pharms. Make sure that, after you shoot it, lie down on your side in a bit of a fetal position or with just the top leg pulled up a bit. It'll help everything settle in. And change sides every couple minutes.
There's really no reason you should be fearing "losing" it, because you really shouldn't be shooting that much liquid up your bum anyways. If you are, it's probably isn't something that should be plugged anyways,.