I don't have a leek, but the twitch is a pretty solid knife. SS liners and aluminum scales. The assisted opening is quick and lock up is strong. The twitch also has the pass-through "kick" as well as the thumb stud. I like it and carry it, well, once in a while. If you don't mind a slightly shorter blade, save a couple bucks and get a blink. the only thing it lacks(v. the twitch) are the liners(the aluminum scales are pretty tough) and the kick(it has thumb studs). They are both stout little knives.