I think the point here is that it doesn't have to upset the car, so if it's doing that then there's potential gains to be made by improving the car setup and/or driver brake application technique to avoid it.

--Ian

 

As it regards the booster comment, I fully agree; have noticed that even on a stock car when throttle blipping during braking and downshifting.

 

I've quit thinking about "Brake" points and began thing about "Lift" points. I try to make the lift point a late as possible, and then know I must be immediately hard on the brakes to make the corner.
I don't want the weight from the lift to come off the front of the car. I want to use it for the initial braking to reduce the frequency of lock ups and flat spotted tires.

One of the HPDE schools in the area, the advanced class passes out AIM Solos and reviews data from a few students after each session. The former teacher was a SM and SRF national champion.
He continually insisted on sharp points at the top of each speed trace in the transition from acceleration to braking for a corner. The sharp points are achieved by no coasting between power and brake.

Check out Peter Krause with more on it: