Taken from April's post.11) This is a one block per swapper swap. You will have to make 35 blocks per large group (36 swappers in each group) or 15 blocks per small group (16 swappers in each group) (If you wish to do two groups please be aware this means you will have to mail 70 F8s and make 70 blocks or any combination of the possible group size). Please be aware of this before you commit yourself if you do not think you would be comfortable making 35 blocks in 4 months. (70 for 2 groups)