I agree with both previous posts. This topic was discussed many times, and I believe that only a compromise solution has any possibility to be implemented. The solution I favour is to maintain 2 degrees as it is now, but allowing three pivot positions instead of one. 4.10 has two very good examples in the I15 and CW21 cockpits. In the I15, moving to side gun-sights allows to look around struts and almost straight down the fuselage side. In CW21, pilot’s head moves a little up, allowing a beautiful sight above the nose, that’s a dream for landing (and taxing!).
The pics below show the difference. They were taken at the same moment, with the game paused.