SRAM uses Type 5 controls. I make no claim that this is the best opener, I'm fooling around trying to figure things out.
It jumps to 408 km/h when the clock is visibly 0'03"43, and to 446 at 0'03"45 on the next frame. I'm not entirely certain what's going on. It looks like a double hit to me, although Power only drops once.
The Wind Walker CPU in Training hasn't had any obvious speed boost from me hitting the wall or anything, so I fooled around and tried to snake to reduce my true speed forward after a rocket start, but without hitting the wall. If things are different in Grand Prix, I will take a look there.
The list of five numbers in my current script show, after messing about, that the Wind Walker CPU reaches the same lap segment after the same number of frames, after a few random actions on my part.
This "good hit" was apparently frame perfect to get. One too many or one too few frames of my leftward strafing did not get anywhere close to the 446. I may want to study the collision radius for a bit and see what I come up with. Is this the effect we want, or am I looking somewhere else?