Please help me understand the personal index system? On Mile High race this year a racer run 0,781 under A/DA index. The original index was lowered from 7,17 to 7,09 and the index at this altitude was lowered from 7,57 to 7,49 both of these adjustments are fully logical. But this racer only got his personal index at this altitude set to 7,47. That’s only ,02 down shouldn't it be ,10 down ?