^Okay, I might not have been completely clear...If you find yourself in acute withdrawal 24 hours from now, that means you're pretty much back to "square one"..You might not be facing as long and painful a detox as when you stopped the methadone, but as far as you're brain and body is concerned, you're back dependent on opiates...
It might be a "cold turkey heroin" withdrawal, it might be a lighter, shorter methadone withdrawal, it might be something in between..nobody has any idea..
The quickest way out of it is always just to stop taking any opioids whatsoever, and using other comfort meds..The question is: Will that be tolerable? If it's not, you may decide to do a long taper again, in which case, you'll end up dealing with all the discomfort when you reach the end that you were dealing with this time!
You should know within 48 hours where you're at with this...If you feel kind of shitty still, but it's not full-blown, you'd be nuts to put any other opioids in you. If it's fucking horrible and you can't take it, it's better to do a long taper than go back to getting high...
If you can go to a 5-7 day detox, but only do the "clonidine protocol", or have those meds prescribed, that would be your best bet...time wise!
So, taking any opioid will definitely set you back, and if you just want this to end, would be a bad idea...but you might find that you want to "set yourself back" and go in for another landing in a month or so...
So, there is no "one way" to do this, but unless the withdrawals are completely unbearable, I'd personally try to stick it out at all costs!