Mmm...
You know what, I'm surprised this happened.
I was trying to edit it to see if it could break my highest head punch record (almost got there, it got to about a few thousand away), but it turns out, it beat another record:
Highest speed attained: 68.15m/s (my old one was 66.83m/s)
Edit: Got it to an astounding 71.06m/s