You can feel very comfortable in a Mustang when you are being shot at when you have almost 3,000 rounds of 0.50 cal in the bins and 6 HV rockets.
You can feel uncomfortable if the fuel tank just behind the cockpit is topped up with 75 gallons. It's longitudinally unstable. Might be nearly stable again when that space is you.
What say you 2 place Mustang pilots?