just additionally to Inge's very good hints. Don't think too much in degrees. Try to rotate as little as possible. This means a relaxed recovery with elbow not behind the scapular plane and finger-tips drawing a line at surface and "risky inhale" (surface just at mouth-angle of turned head) should be possible.
Terry himself said, he expressed himself misleadingly. What he would have said: Don't swim flat on your belly!