I have made 30 blocks using the Creative Grid Pineapple ruler and all of the blocks were so carefully measured to 10 1/2" unfinished squares. I went to sew them together yesterday and the points do not match up. Has anyone made blocks with this ruler and found that they are off just a bit? Any comment or support ideas would be greatly appreciated. I am thinking this will be a utility quilt. Loved making the blocks and was so excited to put them all together and was so disappointed when things didn't match.