this has been a debate over at another board I have been on for a 100 years or so, but yes, you can mix oils and water based gear. I hear it takes the sting out of some water based gear, I just live with it, cause I don't mean to sound like a pussy but I don't like shooting 2cc's worth of gear into one muscle all at once. I like to break it up and use spot injects especially for something like winny. Also mix the winny up, one day shot next day drink. Otherwise, I would be walking like a biotch, or leaking out all the fuckin holes I have in my arse.