went one size smaller and did a 3" block. This one was a lot harder than the 4", and I resorted to hand tacking the points so they would match. I also graded the seams as I was sewing.
I don't know if I'm brave enough to try a 2" size. I think if I modified it by leaving the center point blank, sewing the eighths together and then doing a simple square enter (sort of like the pieces that have the outer corner a different color). Getting 8 tiny points to like up is a challenge. And with this block - it's 8 points on each side too!
Looking at the 4" blocks, the yellow is 4 points on the sides, and the red is 6 points on the side. hmmm - no wonder this one was so much harder LOL!!