I think you are okay on the structural strength. My boys hated car seats and the only way to soothe them was to stick them in a backpack and go for a walk, and I often used the Slim Stick as a 3rd balance point or to soften the impact of going down curbs. 200 lbs of me, 10 pounds of pack and baby gear, and 20 pounds of toddler never made the SS flex on the way down. The weight is also negligible so you can even almost forget it's there. I did try some hanbo techniques and choked up punching on a heavy bag, and the SS did great. The last point I forgot to mention is that the shaft of the cane is hollow and still strong as hell. If you need to extend it out, epoxy in a threaded rod to the right length, loctite a nut next to the shaft, and cover the rest of the rod with a threaded barrel. A little dremel, a little paint, and it will look like a feature. I would highly recommend using a Leki hiking staff rubber tip, since they last forever and grip like a glued monkey even on wet pavement. I have forded a few rocky creeks where the bloody cane was the only thing not slipping. I have only had 2 problems: the aluminum head takes micro-dents easily and that upset me until my boys got it so banged up so much it just looks and feels textured; and the threads holding the head were already buggered up so the head would rotate loose. A little glue solved that problem. All in all, I have been happy with mine for the last few years, and I think if you are looking for a cane that is both an actual walking aid and is more than capable of self-defense use, then this is the one. I do like to make my own sticks, but I can't get them as light and slim, though I did have some success with making an ironwood head on one of the kamagong garrotes from kriscutlery. For serious DIY inspiration, there is a guy over at myarmoury.com who does some neat work for himself and posts on a walking stick thread.