Editing 100m London 3DS (section)

== Starting cycle ==
The start of the race is very easy to predict once you understand how it is determined. When holding the A button, a beating heart appears on screen. The race will either start at the 3.5 - 4th heartbeat or at the 8th heartbeat. This is actually determined by the CPU charge rate. When all CPUs are charging before the 3rd heartbeat, the start will most likely occur during the 3.5 - 4th heartbeat. If not all CPUs have begun charging by the 3rd heartbeat, the start will most likely take place at the 8th heartbeat, never later.

You can also pause-buffer the start, with the quickest start you can achieve being 0.033 seconds.