Perfectly said. I love my Brooks but they are fussy. Don't put a level on it and expect it to fit. You really need to adjust the tip up just a bit. I'm switching seat posts because my Thompson's don't have any set back.
It's not the same for everybody. You need to find the position that works best for you. Mine feel best with the rear slightly higher than the front. I don't know how anybody can stand to have the front raised, but we're all built differently.