I couple years ago i got a gerber guardian, which is a very similar blade--7.5 inches, rubber handle, double edge, coated blade. It really throws well as its balance is just right. Its made to be a boot or carry knife. It runs about $48, so its a bit more expensive. I quit throwing it cause I wanted a bigger blade, but it was the best small thrower I ever tried.
I dont think it makes much sense to throw your boot knife at somebody. Then you loose your weapon, and if you havent killed them, which is highly unlikely, they now have your weapon. It makes much more sense to either run, or get a good grip to fight with the double edged knife. keep it hidden until you can strike, then slash to create the largest bloodiest wound possible, hopefully a face wound, then get the heck out of there. If you stab you are likely to get your knife stuck in a bone, and are also more likely to kill someone.
just my opinion. i'm no expert.
kiov