Looks to me like if you do the 4 month boom it would be about 2 blocks a week (allowing for some planning and mailing time), so the 2 month boom would be 4 blocks a week. As tempting as the quick turn around time is, I work full time so the 4 month boom is probably more for me. Besides I'm planning on participating in a roosting robin w/ a Doctor Who theme (for mine not theirs) that I'm so excited about. Using one of my TARDIS paper pieced blocks for the center. (yes flying my nerd flag high and proud!!!! lol lol lol )