Posted: 29/08/2014 at 10:24
Sounds to me like you'd find the beginning of the couch to 5k too easy. You sound like you are at least at the middle point of it fitness wise, if not closer to the end.
I'd advise that you do both gaining speed and distance but at different times and slowly building it up. So do some shorter runs during the week with one maybe looking at going a little faster, then at the weekend add a little distance. Most runners have a long run in their program once a week or so and you can just slowly up the distance as you go.
As for the minimalist running stuff BEWARE!
I would absolutely agree that finding a good running gait will most likely be beneficial to your joints and your bones, but it is no stroll in the park converting over to a minimalist running style.
Shoes might encourage a certain way of running, but most allow you to still run badly. You need to get some information (Online, in books, from a coach/club) about how you are supposed to run and then you need to start doing it little by little because it may put a massive strain on your calves and achilles. It is very easy to get injured in this time and it is really a case of the bigger they are the harder they fall. More weight and pressure going through muscles and tissues that have not worked so hard for years.
If you are going to transition, it might be helpful to start C25k again just to build that strength.
Good luck mate and welcome to the bonkers world of running!