Never messed up. Though half the time I WASN'T supposed to get back in time, but that was what I was trying to do, so yah.
But second match at nationals, I stacked two and miscalculated the distance to the ground so I smashed my bottom lip between the bin and my top teeth twice (the bins and my head both bounced a little)... And then my lip bled a lot during the match that was interesting. (Speaking of injuries, the robot also hit me coming down the ramp and I got a 3~4 inch cut that I didn't notice for 5 hours.
)
So if you're going strictly by "back in time" i'm at like, 50%. If you're talking "doing what I was supposed to do", 100%.