Third I can "Eject" this glock knife with one hand. I have my hand by my pocket allot.
Ok, I think I get it now. You plan to keep your hand in your pocket, eject the sheath in pocket and withdraw the exposed blade from your pocket ready for use? Dude, please don't do this. There's a thing called the femoral artery and encounters between it and a knife always end well for the knife...
Seventh If and this is a big if, but if I ever got into a knife fight even though I train martial arts what makes you think I would be able to get my knife before the guy with the knife has me killed or such. If someone wants to "attack" you with a knife it is not a "fight" It is an "assassination" and you will not see the knife till you have already been stabbed or cut. Tell me I am wrong and I will tell you to do more research on this topic.
So, this is for those kind of knife fights were you stand off against your opponent and he kinda says "come at me, Brah" and then you say "No, come at me, Brah" and then he flinches and you back step and then he kinda growls and you sneer and then he says "c'mon, less yer chicken" then you say "I eat chicken, brah" and he says "prove it, don't talk it" and you say "I
will prove it, Brah" and he says "I'm not your Brah, Pal" and you say "I'm not your Pal, Buddy" and then he kinda pulls out his knife and lets it flash in the light for you and you pull out yours except it doesn't flash because yours is all tactical and black and way more deadly and he laughs and says "you kill butterflies with that, Brah?" and you say "you'd be surprised what I can kill with this, Buddy" and then the cops with guns get there?
These really are the most common type of knife fights, so it makes sense to prepare for it...not the whip-it-out-and-use-it-in-a-flash technique only used by ninjas, assassins and ISIS.