So my understanding is that the 1st destination is your smallest plane, the 2nd your largest, and the 3rd you most numerous types of planes. And yet, last week and this week I have been assigned Owls for my 1st and 3rd even though I have more Swifts. Last week I was given Owl for my 1st and Swift for my 3rd even though I had fewer Swifts than Owls. What is going on?