Hi All: I really like Hinderer's designs. I have a ZT 0562 and I borrowed a friend's XM-18 for a couple weeks. The handling and ergo's work just right for me. But I can't understand the pivot design on the XM-18 and other Hinderer knives. Why is the slot interrupted by the nub of the screw so that you need a spanner to hold the nut? That extra nub doesn't do anything as far as I can tell. If it terminated 1/4" shorter then you could use a plain slotted screwdriver to hold the screw. I know there must be a reason but I can't figure it out.

