321s feel very different particularly on reset, much less pressure required with a very crisp feeling click as you depress, the 861/1861s on reset require a lot more pressure and have a clunk kind of feel once it gives way and fully depresses, I'm guessing thats just related to column wheel vs cam and lever, but at the same time I've seen 321s with broken column wheel teeth while I've yet to hear of an 861 cam that's been broken.
Probably something Al could offer much more accurate insight into than I as its just from fiddling with the dozen or so I've got laying around here that I've noticed that.
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