Actually, Tulsamal, I support your recomendation of the Wegner. Both are excellent knives both in balance and construction. The Military has a slight advantage(in my opinion)as a dedicated weapon because of it's narower tip, longer blade and generally more intimidating appearance. But, as you pointed out, those same traits tend to make most people wince when you bring it out. Don't get me wrong, the Wegner is a big blade too, but how many of us have used their carry knife for defence even once, let alone on a daily basis?
Pick the knife you see yourself using casually, you know: the one that scares the sheep less and draws less attention from Law Enforcement. Thats the one to train with and for me, thats a Wegner.
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If you try, you may fail. If you don't try, you certainly will.