Would one ever use reverse thrust on live engine during an asymmetric landing? Surely that would produce an uncontrollable yaw?
I did once, but very, very carefully. 'Turned out it worked fine, but we were uncertain, so very cautious. We were doing a single engine landing in a Piper Cheyenne II, into a relatively short, snow covered runway, so "guarded" use of reverse was considered a balance of assuring a safe stop.