It's possible that I am larger around the middle than yourself. I don't find this easy or quick.

Is there any reason you cannot just mount the sheath directly to the hip belt or the stabilizer straps? When I backpacked in bear country, I had the bear spray holster attached to my frame pack this way.

Obviously it's not going to be easy or quick, since the premises is about injured or otherwise unavailable right arm. As long as you can actually retrieve the knife with your left hand, the end result is the same.

It would be a lot easier though if your knife is clipped to pocket or hang off belt, than if it's deep in bottom of your pocket.

I going to be as civil and unoffensive as I can, b/c I don't like flaming people but I'm sorry, this question is ridiculous. You just gotta figure it out.

unless the sheath is horizontal belt carry its going the wrong direction though since a pack strap is verticle and a belt is horizontal.
Works well for say my blackberry case where the belt clip rotates.

such a great and simple idea. thanks!

been there. bad words are what happen!

I am in the "form follows function" crowd. I would try to answer questions like these:

First, identify what functions are served by carrying any knife.

Second, identify what type of knife or knives best serve those functions.

Third, check your local knife laws to see what restrictions they may place on what knife or knives you can carry, and how you can carry them.

Fourth, within what is legal, identify what type of accesss to knife or knives is necessary to serve the functions previously identified.

Fifth, consider what impression you wish to convey to others, particularly children, by your carry and display decisions.

My other thought was put the big knife in the pack and something small like the Hartsook on the strap.
Excuse to by another knife, right

I wouldn't carry any large knife around the torso area as accidents can be quite severe if you fall over etc and the knife become loose or the sheath splits. Just keep your large knife in your backpack as chances are you will most likely want to remove your backpack (for improved comfort and stability) to carry out any knife work. If you need a large knife (machete parang etc) for moving through a jungle environment then this video might be worthwhile watching.

http://www.youtube.com/watch?v=eMLI6BhFV2c