honestly. I know almost everyone loves KCNC skewers, but they didn't work well for me and I ended up selling them after a few months.
I tried running them with lighter clamping force, and the rear skewer squeaked whenever I put power down. If I ran them with a lot of clamping force, (which is very difficult given the short lever), they would still loosen up eventually (within a week or so) and start creaking again.
Drove me absolutely nuts for several months, so I went back to the heavy bontrager skewers I had lying around and everything was fixed immediately. (without wrenching them down)
I weigh between 130-135 lbs usually, so I really shouldn't have this problem (though maybe it's my wussy arms that can't clamp em tight enough
Having said that, the anodizing/machining looked very nice and they are ridiculously light. I would certainly buy KCNC products again (maybe even a set of C7s).
Personally, I would look into light skewers again. It's awesome to lop off maybe 70-80 grams by changing skewers. Just not sure what I would get (bolt ons--probably a pain to flat with--or something with a longer handle?)
Good luck on your quest and please keep us updated on your choice.