Plus eight or minus ten
Well, I have my initial answer for the quilt design:
Initial reaction: it's close. It's very close. I have eight stars left over, thus explaining the +8 or -10. If I want to stick with the current number of rows, I have eight spare stars. If I want to add one more row, which I believe I do, I'm ten short. Given that I'm sitting on several fabrics I didn't use, I'm fairly certain of my answer. I'd planned to be a bit short on stars for that very reason; I didn't pick out these fabrics, so I was going to be very dependent on lucking into a good order.
Two of those red fabrics just aren't playing nicely, though. I don't want to pull them out of the quilt; I'd rather blend them better. We'll see.
Full evolution of the design is documented at http://flickr.com/photos/domesticat/sets/72157613043153779/detail/