You know, I'm just not all that hip with the firesteel holder - integrated with the sheath thing. Maybe its me, but I think this is one of those oh-so trendy trends that will just sort of disappear after a little while.
Unless you have the whole package - firesteel + tinder + striker then I don't see how this combination is so great. You never see a piece of fatwood stuck into a loop on one of these sheaths - just the knife and firesteel.
Then there is the knife as a firestell striker buisness. I do actually practice this every once in a while just to say I can do it, but I don't think this is the most effective way to spark up a firesteel. I get far better results with a small striker. This has nothing to do how square (sharp) the spine is, but rather my ability to hunker down and get that steel and striker as close to the tinder as you can. This is easy to do with an itty bitty little striker, but no so easy to do with a big honking knife. Yeah, easy to throw sparks in the air - but I want those sparks landing on my tinder and not having my knife tip burry itself into a rock during the process.
Personally, if I ended up with one of those sheaths with a firesteel holder, the first thing I'd use my shiny new knife for would but to cut that little empty loop right off! Thanks for reading my rant - I feel much better now!
As I said before - necker looks awesome. Keep that sheeth really low profile so we can wear it around our necks. Think about this, if you had to dance a slow dance with your partner, then your neck knife shouldn't get in the way