I have an Izula. Not a poor choice for a neck knife. Don’t use with a finger in the hole, this isn’t a skinning knife.
If you want to carry a longer knife ‘upstairs’, know that you can get a shoulder holster/sheath system. The Mercharness allows most sheaths designed for neck use to be mounted in your armpit. I’ve used one to carry a heavy Krein fixed blade, but found it more comfortable with something on the opposite side as a counterweight.