Nothing wrong with slab sided bricks! That could also describe many G10 handled Spydercos, but they're usually considered quite ergonomIc.
Reading through this thread, it's kind of hard to envision what "perfect" or "good" fit and finish is as described by people who are happy with their Emersons, and what "sloppy" or "terrible" f&f is as described by those who were disappointed with their Emersons. Pictures might be nice
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For instance, in my opinion, these images from BladeHQ show imperfect fit and finish, but it's certainly not horrible and does not appear it would affect functionality. Here's what I can see- the scales are slightly larger than the liners and overhang just a tad, and there are tooling marks on the liners (especially the bottom right corner of the second picture) and the blade spine (wave and jimping). But these would be acceptable to me wouldn't particularly bother me on an Emerson, given their philosophy that their knives are just built to work and not necessarily to look pretty.
For all I know though, those who were unhappy with their Emersons could have thought this was absolutely horrible and unacceptable while those who were happy with their Emersons thought this was good or perfect. Or maybe there are examples out there that really are way better or way worse than this. So....pictures please!
(I didn't address lockup issues here...but pics of the lockup would also be helpful)