What’s going on with these 2 nakago?

[Xander Chia]

At first I thought it was suriage by folding the end of the nakago onto itself (kinda like orikaeshi mei). But I realised that it looks too “clean” if you know what I mean. On top of that, if the first image shows that the yasurimei actually changes after the horizontal line.

[Grey Doffin]

The area below the horizontal line is original nakago and the area above is new nakago after suriage (shortening). No folding involved.

Grey