I really love OwenTF Balisong but I wanted a more minimalistic look, so I remixed it into this model and I've tried to retain its flippability as much as possible, you can use OwenTF blades with my model. I recommend using rubber bands on the handles to make it less noisy, but you don't have to. don't over tighten the printed screw as to maintain low friction, I like to use lube as well (rubik's cube lube does great) and once I find the good amount of tightening, I superglue the nut/bolt.