There is no need to get granular if you understand the difference between the $2.5B v 6.9% crossover from 10% to 20%. It is simple math. As revenues exceed $36B the Delta formula is superior and as revenues/profits grow as Kirby predicts the difference gets larger. Add to that that Delta's PS is part of their compensation on which their 16% BC contribution is based. Don't get lost in the weeds.