Some very valid points there anotherthing, there is a lot of pressure when stacks swaps are being initiated but most of the time they are a necessary evil, especially during those periods when LAM and BRASO are full but all the other stacks are practically empty. Sounds stupid but it happens quite regularly!
Sometimes we just have to make the best of a bad situation. Better the "stitch up" is spread over a couple of sectors rather than just the one.