Check out the suboxone mega thread in the OD forum. You will find a lot of good info. You should have no problem what so ever getting by on 2-4mg of suboxone daily. I had near the same oxy ussage as you, and that's the suboxone dose I take (snorted). Suboxone doctors are notorious for over prescribing (I am prescribed 16mg daily but only use a fraction of that daily) and
16mg a day is way too much for your habitt. Drop your dose now, because w/d from suboxone at that dose is tough.
There is no reason for you to take that much suboxone. Less is more when it comes to bupe, and lower doses work wonders. Many people on bluelight take less then 4mg daily, even though they are prescribed much higher. Start with 2 mg, and if needed increase by .25-.5mg until settled. After an oxy binge, I dose high my first day back on subs (3mg), by day two I am only taking 1.5mg at most, and lower it every day after. You should have no problem doing a quick taper, but the key is starting small.
Do yourself a favor and please check out the
suboxone mega-thread. The info in there will help you immensely.