Jan, I'm totally consistent with the size of seams. I carefully cut out the templates exactly down the middle of the dotted line. I don't know why sometimes the blocks are too small and sometimes too big. It's only happened on about 4 or 5, but still, out of 30 blocks that's a sizeable percentage. I don't really mind adding a bit on the smaller blocks, but I don't like to have a larger block where I know I'll have to sew across the points of the block to make the seam line size be consistent with my layout pattern.