Get down with your bad self ginking - cool formulas!
I agreed with ginking. Get your hooch in into a bucket and sweetend by addition, taste, addition and stir, addition and stir (gently, no aeration.) Take a F.G. when you get it where you like it, then you can go off that next time.
If you don't do something about the yeast, it will eat sugar, honey, molasses etc. So your only add option with no risks are truvia, splenda etc. Sulphiting and sorbate, works well, especially if you can cold crash your hooch, rack it into your bucket (most of the yeast drop out of suspension) then sorbate and sugar.