I agree on where to put the two pilots in a B727, but Flaps 10? Which had a detent between 5 and 15?
Oops.
After I wrote that yesterday I realized that I had a brain fart. Yup, you're quite right, it is 2-5-15-20-25-30-40. Must be a sign of old age, well that and it has been over ten years since I flew a 727.