I would agree that some of my stiletto boots are fairly easy to walk in. The issue for me is navigating rough city streets, sidewalks or slippery surfaces. Oftentimes I am overly cautious, in an effort to avoid wrecking more heels on some of my favorite boots. To be honest, I need to shed a few "dad bod pounds", to take some of the strain off the heels. I would say, my "heel wall" is about 4.5" as well. Sure, I can "walk" in taller heels, but not for any distances.