I have been carrying a Civivi Naja for two and a half years. About the same size flipper as the Proxima but with a flat ground blade. I did
not buy it for EDC, I looked at it as more of a folding skinning knife. But with the pocket clip, it slides right down there in the back of the pocket and doesn't interfere with pulling my keys out of the pocket. So it did become my EDC knife and is not intrusive at all despite the size.
Not exotic steel like S35VN or CPM3V on the Medfors knives, but sharpens easily enough and takes a wicked edge.
Civivis have flawless fit and finish. The bearings as smooth today as they were 2 1/2 years ago when I bought it. And it's been used...a lot.