I sure as hell wouldn't try any asymmetric stuff- what a carry-on!
Interestingly the P38's engines in the video were 'handed' the wrong way for asymmetric flight. Take the port engine, it rotated clockwise viewed from the front so it would require left rudder to counteract the torque, the same as a Provost T1.
This would mean that if the starboard engine failed rudder would be needed to control both torque and asymmetric yaw; in spades.
The De Havilland Hornet has them the right way as it was also designed for carrier use so the engine torque would help you to control the swing.
Somewhere I read that they changed the P38's direction of propeller rotation in later marks, certainly Googling the photos suggest so.