I agree.
I have always taken the position that the customer was paying for one of 4 limits: 696 T5/100 Ng/103Q or max weight (20,500 internal and 22,000 external) But sometimes when night (IFR?

) slinging in the Arctic keeping to 22K lbs was a bit of a battle
And I tried to apply the same conceptual limits to all the other rockets I flew, as well.