The Benchmade CQC-7 - which I'll never sell. The coated blade lost most of the stuff sawing through a shipping tube, the tanto profile doesn't allow easy box cutting, the chisel edge steers to one side, and is difficult to sharpen to the tip. The G10 scales are square edged, the thumb ramp notching rapacious, leaving you to slowly guide your hand past the clipped knife to keep your skin. Emerson fixed all that when he took it back.
Gerber Multipliers - heavy, poor tool design, broke them working on camo netting clips, and too soft to cut wire. SOG was even worse, the tool head kept flipping sideways in work.
Buck's FRN Tarani joke - it may be a SnG in profile, but it's all wrong in action. The cheesy checkering literally saws through jeans, the liner lock is too short and thin to guarantee lockup, the hollow grind makes the edge weak, the stippled upper blade hangs up cutting in cardboard and is a weak method of deployment, it also looks too ninja in public. 420, even treated by Bos, is a value engineered choice for a retail at $60, and reinforces the idea you got screwed. Fit and finish is none existant, all the punched parts haven't even been dressed, the FRN scales show mold marks, and it's not really a framelock - which Buck did do with the Mayo TNT.
CRKT Lightfoot M1 - fat, heavy, and a weird blade tip. Not that good in cutting, and the blade ratio just looks wrong, although it's ok side by side with some other knife.
Chinese Lightfoot automatic copy - it looks Lightfoot, it's already broken. I estimate less than 150 snaps. You get what you pay for, a flea market find for $25. The blade grind was atrocious, cut soft and dulled quickly. Nice bolster fired gimmick. Maybe I can JB weld it.