In the future, I will continue to work on moving to a foot strike that is more conducive to speed and stamina, but will do so more slowly. My current book, "Tread Lightly", has been a treasure trove of good information. The main things I have taken from it, I am nearly finished, is that I need to work on form much more slowly than I have been doing up to this point. I also need to start looking into my cadence. The 175-180 range is apparently optimal, but I have seen pro triathletes recommend cadences that seem to vary with distance. More homework is required on cadence, but I can at least tell it is something I need to be looking at as it has a huge impact on running efficiency; regardless of your form. I also need to make sure I am not overstriding. This has been universally agreed by running experts to be a big no-no for the past 100 years now. I am pretty sure I was overstriding when I was working on the barefoot style before. Shorter strides, higher cadence, needs to be more of my focus. The book does point out that there really is no one optimal running style that can be applied to all runners and that you basically have to make the best decision as it applies to you and your body. There are too many variables. Do the homework and decide what is best for you. That is what I'll continue to do.