Fred Klinge of RunFreddieRun.com had a great article about foot strike. His post is short and sweet with a lot of useful info! In the article, he referred to lower heel offset running shoes. This is also known as low drop shoes. I previously used running shoes with 12 mm drop and I had a high tendency to heel strike during my runs. After working hard on improving my running form plus switching to 4 mm drop shoes, I still have a light heel strike from time to time. However, I transfer my weight onto a flexed landing leg.
Fred mentioned that having a light heel strike is still ok as long as your landing leg has a little bit of flexion. In my past blog post about running techniques, I mentioned that I try to visualize myself running like Craig "Crowie" Alexander. Videos of Crowie on YouTube show he has a light heel strike, but he also has an excellent running form. In an article I recently read about midfoot and heel striking on RunningInSystems.com, they referred to a light heel strike as a “disguised” midfoot-strike" since its about the importance of having proper running form and not necessarily about midfoot or heel striking.
I'll end this post in the same matter Fred ended his article. "So….run tall, run quick & light, and land with a little bit flexion in your leg. No need to worry about a perfect midfoot strike."