@DaManBugs That looks pretty clear to me and I'm sure anyone that understands fairly basic English to be you claiming Heroin is not addictive.Too easy, try again.
I don't know about your other questions, Bovs, since there are folks on ARRSE much better qualified to answer them, but I probably know more about these (last) two than most.
Yes, it is possible to use smack as you describe. You have a threshold of about 48 hours in which you can load as much as you like and you won't become addicted. There are lots of folks who do exactly that.
And no it isn't interesting at all.
I know you're too scared to respond to this as it's very clear you've been caught out in yet another of your historical lies by claiming you never said it, which makes you oh erm... What's the word I'm looking for?
Oh yup LIAR.