Fyi: Ahfs
 

I have done a few calculations. Am I correct?
Six runs in a class. Two runs are made at 1.150 under. The other four runs cannot average more than .85 under to avoid hp.

Ten runs in a class. Two runs are made at 1.150 under. The other eight runs cannot average more than .9 under to avoid hp.

Twenty-one runs in a class. Two runs are made at 1.150 under. The other nineteen runs cannot average more than .76 under to avoid hp.

The sliding scale appears to be sliding to be more harsh on the combinations with more cars running. This is based on 1.150 under. Any further under and the number to avoid hp become smaller.