Thanks. The difference between 60 and 70 degrees is for lawyers. The concept is the same. In single seat jets we'd go to 90 degrees (yes, I'm aware airliners are different). The concept is the same, the nose will drop allowing the aircraft to accelerate. Delta 1080 departing SAN back in 1977 could have used this technique while they were trying to figure out how to establish a stable pitch attitude if they needed to lower the nose faster than they were able to with thrust alone.