Hey guys! So I'm a relatively new brewer. Been doing wine for about 3 months, and have gotten totally addicted to the hobby!

I don't get to crazy on beer brewing (yet), for now I have just done a couple Brew House kits, and was quite happy with them. But wines are another story, I'm always trying to think up some new recipe. So this is my latest, and I'm open to any input you more experienced guys may want to add.
Was in to the Superstore and bought 6 1.89L bottles of PC 100% Cranberry/Concorde grape juice. I was going to buy Ocean Spray, but the PC was cheaper and didn't have any additives that I suspected might hinder fermentation. Plus I blended up 2KG bag of frozen wild blueberries to add as well. So this is my recipe as follows.
6 - 1.89L Bottles PC 100% Cranberry/Grape juice
2KG of frozen wild blueberries blended
3KG of granular sugar dissolved in boiling water
6 tsp of pectic enzyme
1 tsp of tannin
6 tsp of yeast nutrient
3 tsp of yeast energizer
Water to top off to 5 Gallons and whip the crap out of it.
Lalvin EC-1118 Yeast
I considered adding some tartaric acid, however I believe its going to be fairly tart anyway. Now my only thing that I'm pondering is if it will need to be back sweetened. As for now my SG is 1.080, and if it ferments dry should get me into the 10% range.
