Duffy, on the subject of dynamic stretching vs static stretching I remember I used to do both in taekwondo class. Its been some years, the ones I remember were doing a stationary repetitive axe kick, similar for the crescent kick, both directions I think. Nowadays I do hardly any dynamic stretching and the only one being swinging my leg backwards to stretch the hip flexors, I do it sometimes before going in the water. The other parts of me that get tight from the combination of sports I do, I just static stretch. Do you have any knowledge of the merits of dynamic vs static stretching?