I am not for sure how it will work I was trying to go for the middle 1 inch seam in the middle I was going to try for the windmill effect with a one inch around the whloe square as well but like I said I am not for if that would work or not. I'll have to set down and do some muslin to see how it will turn out.
the regular blocks are 9" unfinished so I am assumming that the finished block would be 7 inch I looked at the instructions but It didn't give me the finshed block size just the size of the finished quilt which is 63x77 I belive
I hope this help thank you for your help