Ok read a bit 1ml bac for 10 ius, Is one tick/line on the slin, so if you do 2ml of bac for 20ius half a tick/line would be 1 and one tick will be 2. Hope this helps sum. And i think u can do it sub q or as ur saying I'M. If it's powder ur mixing with bac, same thing. But damn for that much hope it's good!

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