Red line says not to use Red line till 2,000 miles?

The people I know that use Red line rebuild their motors LONG before 2,000 miles
Race motors

I got a race in two weeks, going to do a leak down test tomorrow , might have to re-ring, I bet I have less than ten hours on it, 2.5L Merc ... 2 cycle
We run the motors so close to the edge that the rings don't live very long .
We use to run Klotz R 50 now we have to run AiSYN oil
The reason we have to run one oil or another is for Fuel Check that they do for the top five boats per class.
The Unlimited boys can run what ever they want and they swear by Red Line , they spray their motors No2.
MAX the Molecules are the same size so they don't move , compress , squish out of the way