My first experience with opies was with heroin. Chased off foil. But only the odd line or two off a junky mate of mine who relapsed.
That aside, it was codeine that first got me into habitual use of opies. Snorted 30mg codeine phosphate pills (supplied regularly and on demand by a friend of mine where I worked at the time). I bet most of y'all will be sniggering at that. But you would be wrong. With zero tolerance they'll knock you sideways in very stimulating/euphoric stylee. Imo, imo, etc, etc.
Rapidly moved from those to cough syrups (Gee's

) and then very suddenly switched to heroin due to being suddenly made homeless in the middle of winter as mentioned above. Was HR. Was bastard cold. Then from chasing to injecting within a month for cost:benefit ratios. From a bag per 2-3 days (of heavily opiated bliss - recall this was
sans tolerance with high quality gear) to a bag a day IV to a gramme+ a day IV within three months. Don't ever feel safe taking pissy lil opi doses, mini-fiends. You are but an arbitrary penstroke away from the gutter