To those struggling with pattern piece sizes - Carol Doak book Easy Machine Paper Piecing states that photocopiers often increase templates by just under 1%. Carol says to trace original pattern first then take all copies from that so they will all be the same size when printed - photocopying from photocopies increases each one by that tiny amount and can throw the whole thing out. Hope this helps; however, if your prepared paper patterns fit together nicely, then stay with the size you choose and all should come out well. Old fashioned template drawing 25 years ago taught me to make any size block I need by drawing pattern on paper and using the cutouts as my template. Jinny Beyer also has excellent instructions for drafting any shape or size in her book Patchwork Patterns