I thought that the topic under discussion was the little blue 'T' shaped bits of plastic that come with many MoYu puzzles, which you should not use to tension a puzzle unless you are very careful. The rotating tension adjustment system used on the newer MoYu 3x3s is okay though.
I have heard really good things about the MoYu AoSu WR M.
I guess it is a mix of the MoYu AoSu GTS 2 M and the Valk 4 M, but in smaller size.
We will have to wait for more reviews on it.