Well it's good to know that others have had this problem.
I started at 1.088 (I was under 1.075 and then added too much sugar and wound up at 1.088).
I ended at 0.990
I did not take the SG while back sweetening. I didn't know I was supposed to
I just followed the recipe until I was happy (5cups of white sugar).
I thought it would get sweeter and more like berries overtime. But it hasn't.
Perhaps it's just the lemon juice coming through???
I dunno! I'm a novice!!!! hahahaha
I have blueberry in a carboy now. I'm wondering if I should over sweeten? hmmmm.......