Justin..... I don't know if you're far enough in your folder building experience to hear this.....or even care, but detents and relief are two of the biggest keys in making the action of a folder "slick". Personally, for framelock folders, I leave between .018-020" of the detent ball exposed (sticking out). On a framelock you don't have to worry about lock relief.
On Linerlock designs, I leave .012-.018" of the detent exposed (sticking out). The way I accomplish this is that I have a set of feeler gauges, each with a #52 hole drilled in it (for 1/16" detent). When I place the detent, I place the detent ball on the pre-drilled hole in the lockbar....then lay the feeler gauge hole over the ball, then press it in....this is all done on the arbor press. For steel detents you could also do it with a vise or hammer....but I use ceramic detents, and the vice or hammer will sometimes leave me with a tiny pile of detent ball dust.
(either crush or shatter the detent ball)
Another, often overlooked aspect of folders is the actual detent hole on the blade, and the size/depth. Personally, I use a #54 drill for that..... I was going to try to explain it....but suspect all I would do is waste 1/2 a page and confuse you.
I'm gona put a note on my list of videos TO DO......how I drill and place the detent on folders.