My problem with neck knives is that they are easy to deploy (you do it with one hand) but you can't put them away with just one hand. Besides, unless you are wearing them outside the shirt, you cant wear it under your shirt if the shirt is tucked inside your pants. For me a neck knife is only an option that I'll think of if I'm not wearing pants or my pants/shorts do not have pockets where I can keep a pocket knife.
BTW, I have a Walther (Bocker) "Solace" neck knife, with skeleton handle (wrapped in paracord), kydex sheet but in 440A
. Takes a good edge but dulls up fast.
BTW, I have a Walther (Bocker) "Solace" neck knife, with skeleton handle (wrapped in paracord), kydex sheet but in 440A