This curve is similar to Curve 3, but is accomplished in a completely different way.
Rather than driving the "OUTPUT", we are removing objections to the "OUTPUT". This design uses a "Reverser" technique as the "OUTPUT". The "INPUT" modified value is reverse amplified through the "Intermediate Output".
By reducing the importance of the "intermediate output", the shape of the output curve will remain the same, but the impact of the blocking "INPUT" will be reduced.