A bit late to comment, but when adding fruit, you'll probably have to watch not only pH, but also actual acid content, if only to correct it. I know it's been an issue with some of the fruit wines I tried. Turns out my neighbors prunes will give you a decent sherry like drink, if you like your sherry dry.
Now, I actually came back to this thread because I'm going to be needing a new batch next week. I've not sure decided what exactly, though. A red amber trial batch, at any rate, as I need to age that particular recipe for a year, before blending it in with a fresh batch.
I've been having some issues with the pressure of my last bottled batch, though. As in, it's doing enough to deny the -admittedly light weight- kegs I used. Bottled are fine, even if pressure is apparent on opening. I suspect the temperature at time of bottling may have had something to do with that.