I'd have to go with the Boker Kwaiken 3.5" BladeHQ Exclusive. Thinking that Boker may have been a little tighter on the QC on this model because it was both an exclusive and the Kwaiken was super popular at the time, I thought I'd drop a little over a hundred on this knife. It came off center and the clip design is among the worst that I've personally experienced. A complete let down since I had high hopes and do actually like the design of the knife, but I sold it a couple of days later to fund better knives.
Two other Boker knives that I felt ripped off of was the Anti-MC and the Anti-Grav, pretty similar designs but one is a ceramic bladed folder (!!!) and the other the steel counterpart. Both costed around 65 and one came with a liner lock so sticky and late (pretty much was touching the presentation side scale) I had to use two hands to disengage the knife, the other one was wildly off centered. Once again, sold them as soon as possible with full disclosure.
Maybe I could have hit up their warranty department to see what's up with their poor quality control, but I honestly didn't want to bother when flaws this severe get through to the shelves... or when three out of three of their products I've tried are flawed. Completely sworn off the Boker brand since then, never owning another Boker in my life.