General rule of thumb....keep it on the track if your gonna go fast.
But if it were a racetrack situation, the general concensus is ' in slow and out fast'. Meaning sacrifice your entry speed to set up for a quick exit. This especially holds true for esses leading on to a long straight. It can be taken conversely if a long staight ends in esses. If the entry and exit are similar, slow in and fast out will help you stabilize the car quicker thus power down faster.
Hope to see you at the Expo, it will be the place to learn.