John I feel your pain. Literally. My wife and I are both karate people. I am a foot taller and am double her weight. On our first date we decided we would "work out" (karate talk for spar to size each other up). I took a knee to the eye.

It was love at first fight. She hasn't done any real karate in years but can still kick to my head level without stretching.

I'm glad I sold the knife.