We all make mistakes:

Ive left through the wrong start cylinder and slowed my speed from
103-105mph to 70' something.

Ive programmed the wrong size turn area....basically landed
out....that cost me 700plus points.

first contest i flew I got to visit the scorer and CD almost every
day. Took the picture from the wrong angle, too long of GPS gap, One
day im not sure why I got a zero for the day.

Radioed the wrong start time.

The 2min is not a way to give you a penalty, but keep the guys
blasting down from wave, nicking the start gate at speeds ....then off
on course turning the excess speed back into height. The good old days
of VNE +20 are over.....at least on the start.