When should I replace my coil?

This is an interesting question that there is no real scientific way to answer! We normally see that people get a year to a year and a half out of a set of coils. We have had some people wear them out in 8 months and others have lasted over two years.

In most cases, it is evident... the rubber is worn through to the metal coil, so it is definitely time to get a new set!

I had a not-so-obvious one this week. A customer had her shoes for about 21 months and there was still rubber left on the heel. She was complaining about the fact that she felt she was walking on the outside of the shoe and this was causing cramps in her foot. When we examined the coils, we noticed that the outside of the coil was severely worn down, causing her foot to shift just enough to aggravate the outside of her foot. We put a new set of coils on and that resolved the problem!

So, the moral of the story is that if your Z's are quite feeling up to par, and you notice a lot of wear on one part of the heel, it might be time for a tune-up and new coils!

Till later,
Caesar...