I'll go with whatever the group decides to do with the two month group. If we double up, I'll have to send some coordinating pieces for the second block since I'm using the same fabric for both groups. I've cut 4 1/2 yards of my main fabric. After cutting, I have 28 F8s from that yardage. Maybe I'll just send the background fabric to coordinate with my main piece for doubling up.
GramE, don't stress over perfection and complicated blocks. We all want a well-made block, but it doesn't have to be complicated. For me, the main thing I want is for each block to be 12 1/2" square, so that all of them get included when I put them together. Just relax and have fun with it.