I figure that either we're freaks, or everybody else is just substandard. 😆 I can't really tell you why it doesn't hurt anymore. In fact, I prefer the high heeled position of the foot for most things. I wouldn't want to be stuck in that position permanently or anything, but I do like the way it feels. I suppose it is something that is developed through repetition over time, and I suppose that like any other athletic endeavor, there are some people who are just not very good at it, or have a physical impediment. That would explain why some people claim that even 6 cm is too high for more than a few minutes.