One of the reasons that not too many pilots fly transports is when an engine goes out, a crash usually occurs due to a yaw stall. If a pilot does not recognize it immediately, one engine running will spiral it into the ground. It will happen faster if you are in a turn with the lower wing motor quits. (Ask me how I know)
One way to prevent it is set your ESC with brake off so props will windmill(now you will have equal retarding forces along lengthwise CG to prevent a yaw stall) so if the wing ANGLE and your glide slope is correct(about -30 degrees for mine), you can keep a glide and flair a good landing. Try it with your transport, take it up (brake first and the no brake) and see the difference. It will give you practice for the real thing.
Yeh, Peter did design both transports and even tried to make a VTOL out of it. Too bad, he didn't go on to be an aero engineer.
I like to design and fly unique planes.