Yeah I wouldn't recommend benzos and H, it's a leathal combination. But From my personal experience I would do the benzo about an hour before your shot... Or depending if you have a physical dependence to Heroin, do it with your first morning get well shot ... Then later when you dose it will allredy be active and make that next shot that much better. I don't know tho, just be safe. I have some what of a tolerance to smack, not so much with benzos. So when I do have an opetunity to do benzos with H it's 1mg benzo, to Half gram Smack. unless valume is in place I do about 2or3 5's be save and good luck
"Free your mind, and your Ass will follow. The kingdom of heaven is within" - Gorge Clinton