I started learning Tracy Kenpo and then Ed Parker Kenpo in the 70's, getting black belts in both. Yes, American Kenpo is mainly a kick-*** empty hand art. Yet...all the empty hand techniques adapt well in using a knife or sticks. I created more double and single stick techniques, and karambit techniques, all from my knowledge of Kenpo. Kenpo did not teach ground techs, so created 52 ground that mainly just got you off the ground and back onto your feet. I then added more joint locks (sometimes you have to use a joint lock move to be in the best position to strike and kick.
Find a art that is effective for YOU and stick with it. I'm 5'2" slim and I've been attacked many times in my lilfe and it was over with just one move or strike or kick. One guy in a ocean fog covered town of Oceano, in a dirt alley, I was grabbed by right hand at my chest. My muscle memory took over and using a move from a technique called Snapping Twig, I broke his elbow. I practice my version of American Kenpo, but I've added much to it for my personal use and the teaching of all the adults I have taught. I'm 76 and I practice three times a week and teach adult black belts for higher rank. I created new techniques for beyond 3rd black because no new techniques existed. I now have, practice and teach all the way up to 10th degree black. After 3rd black, I teach 40 new techniques per upper belt ranks.
I'm writing a small book on self-defense techniques and joint locks and am adding the "written" explanation of new techniques from 4th & 5th degree black.. There are no complete pics for these degrees, but I am including pictures that show some aspect of the tech that students may not under stand.
Forever in AKJ-American Kenpo (my person explained version of American Kenpo)
Sifu 10th black