I can't remember in which thread the subject came up before, but somewhere along the line I had decided to test out my new walking technique against stiletto heel tips, and now I have the first results. As expected, my heel tips now last twice as long as they used to.
To briefly recap the last 10+ years, I quit wearing stilettos for actual walking a long time ago because typically I got about 8 to 10 miles out of them before they needed attention, whereas with even slightly thicker heels, that mileage increased to around 40.
I then became interested in the mechanics of walking in heels, and have attempted to alter my walk, somewhat successfully, and I have discovered that I am not wearing heels out nearly as fast as I used to. This is mainly because, although I still walk heel-to-toe of course, I come down much more gently on the heel compared to the way I used to walk. At any rate, it came up in some thread somewhere, "Why don't you try stilettos again for walking, and see what happens?"
I realize this is not scientific at all, but it is interesting. The first test pair was my Shoedazzle mules, 4 5/8" in heel height, and 3/8" in heel width, and I got 16.5 miles out of them before I hit the nails. If I were willing to go down a little bit further, like @Jkrenzer, I'm sure I could have gone a few more miles yet. They now have brand new heels, and I am a bit curious to see if the feat can be repeated.