I can.. but only for so long. I haven't touched anything but my daily script of bupe in quite some time.. I used to do dope, oxy, dillies, etc... and then just get back on bupe when ready. HOWEVER, that shit aint too easy for me at least, with nothing to get through WD.
I do chip with coke/crack though these days, and 2 year ago I was an everyday user of both.. got off it and just smoked herb, with my bupe and other meds... and was fine for good while. then got more money than I knew what to do with it, and started just using it 1-4x a month max... its a terrible mental addiction, once you get addicted.. and you get addicted, especially, with crack, very fast! its sneaky. Some of my friends have insane amounts of will power.. they can smoke a 100 slab of crack and not want any more, just by having a drink or 2. its crazy.. I need benzos, weed, and subs to come off that amount.. I cant stand it.. but with opiates, I just kind of did them on the weekends, on pay day.. I would skip my sub dose in the am or just take like 1mg or less, and by the time I got my paycheck cashed back then, I would be okay and feel opis.. especially IV which was my ROA of choice, most of the time. I could then after doing lots of usually oxy or dillies or dope on the weekends in total, all 3 days, I would sleep, then wake up after 12 hrs or so after my last shot of whatever and be okay to use sub, but only because I have a very fast metabolism... so I would recommend waiting until you feel like its right to take sub.. if you do.