not sure very many people carry such an item concealed.
If you're going to carry a dagger you need length. As to the tang, since it will be a stabbing weapon a full tang is pointless.
A.G., RIP, designed and manufactured the Sting and commented tongue in cheek that it was just a double edged skinner that you would flip over if one side dulled.Unsuitable for sporting purposes ?
If you can, make a point of taking a look at the blades that John Ek made for the troops in WWII...
only sell to the military