So how many days would i have to wait after using subs to have a little tickle?
I've been on subs for a while now and ended up getting high a lot in the first year, so I have some experience with this one. In the end I found the best way was to lower your dose one morning (1/2 - 1/3 of your normal dose), to take another 1 - 2mg either that night or the next morning, and then use on day 3. So if I wanted to get high on Friday, I'd go:
Usualy 24mg - Tuesday morning
8 - 12mg, Wednesday morning
1 - 2mg, either Wednesday night or Thursday morning.
then nothing until Friday morning, at which point I'd shoot my H/Morphine/Oxy.
Using this system, I'd get at least 90% or so of the effect from the full opiate on the first dose, and 100% by the end of the day.
You might have to adjust that further, since you're 8mg higher than me, but the same principle applies.
If you try to take a break going straight from your full sub dose to getting high and don't taper down for a couple days beforehand then you get this really crappy period of a day or so where you're feeling horrible, but there's still just enough bupe in your system to block most of the effects if you end up taking your full opiate, so depending on your willpower you end up either wasting your stash or having to hold out while feeling like shit for a day or so, neither of which is particularly fun :/ With the taper system, the 1 - 2mg piles onto whats left of your previous doses into your system and keeps you going so you don't hit w/d's until a couple hours before you're going to have your full opiate dose.
Unfortunately, the swap back to the suboxone is much harder, I found I pretty much just had to suck it up and go 24 - 30 hours since my last shot before taking the subs. Although, it helps if you do a codeine CWE and take that as your last dose, since codeine is weaker and has a shorter half life than most other opiates, you'll be able to shorten the wait time.