Dewey comes down pretty hard on the model 21:

https://vicknairgunsmithing.blogspot.com/2016/01/an-unbiased-look-at-design-of-american.html

It is what it is, to me, and if a guy wants one or some in his collection, more power to him. Just don’t bother me with how strong and reliable they are. Anyone remember the SXS shoot that had about 6 of them with popped ribs?

Cured me of that notion.

Best,
Ted