I have progressed from 1 to 7 in successive "attempts" on my times I've come off painkillers before.
BTW my current endevour is proving HARD.......and very PAINFUL.......and i'm only on day 3 (or 4... I forget...not that it really matters when there are about another 1,000,000 days ahead ).
I said goodbye to numbers 1 to 4 completely when I lost my colon. I tend to aim for a 6 these days, a 5 would probably mean I'm a bit dehydrated. 7 is the norm though