I have a wine I made from 4 cans Welch's white grape/peace per gallon(6 gallon), and a 49oz can of VH peach concentrate from may-2013. It has been bulk aging since then with the occasional racking/sulphiting. It is quite clear, and has a nice color. When I take a sip I get a decent peace flavor, but an overpowering alcohol punch. I know it's less than a year old, but I would think this wouldn't be so harsh by now. I haven't back-sweetened, and SG was 1.01. Will back-sweetening mellow this out? oak?