Weird reaction to ROA

Howdy folks, been using opi's a few years now, mostly H the last few. Relationship crumbled just before 2y Mark and bought some rigs. I'm usually a BTH smoker. I take suboxone every day to avoid the scene and getting fired. Only .5mg 2x a day, I'm always able to break through with just smoking .2-3 or so, but banging that shit has been less than uhh useful? I'm not missing, I am kind of a pansy and it may just be too small, but 1/3 of my IV dose smoked gave me a buzz, any idea what's going on? Obviously a fat shot is the answer, with a year of sub use I'm not gunna turn blue and die but still, any clues?