There was one block that just was not 'right' in its original placement - a very purple block in the middle of some reds - so I swapped it with another. Otherwise, for better or worse, the blocks were placed according to the placement for the Gridlock layout.
As I pieced each block, I placed it in my book for safe-keeping. Then all these months later as I sewed rows together, I pulled blocks from the book as they were called for. And happily, my book is in great shape, surviving to inspire another day.