Non Emerson knives with "wave"

[nowhere fast]

I recently purchased a Greg Lightfoot 460 Magnum folder and the way the top of the blade is cut (right above the thumb stud), when you draw the knife out of you pocket (if you draw it towards the back of your front right pocket, like engaging the Commander), the Lightfoot opens just like the Commander. I've seen other folders that have this cliff type grind in the same position and imagine that they must open in the same way. Does anybody have any folders like this?
Just curious, Donald.