The problem is if someone puts in a 1-3 second snipe we probably wouldnt have enough time to detect it and place a counter snipe.
I understand what you want to do, and see the use but not sure there is a practical way to wait, but then also snipe if we need to. For example this would totally not work at 7:00:00pm. It would take far to long to detect if someone else sniped and placed a snipe.