Can't wait for the Feist! I am very interested to try a front flipper that runs on bearings as the only other front flipper I've had ran on washers and flipped in slow motion. I looked at the picture of the Feist disassembled on Instagram and am curious about the back stop. I've seen the reverse before where the bar is stationary and the blade has a path cut out for it to run on for example, the Lionsteel TRE, but I haven't seen a stop bar in the blade that runs in a track in the handles. Is this an innovation first developed in this knife or has this been done before?