severity grade: 0
Started during SOW 2006, didn't care much about it initially, things have gotten worse since increasing training efforts November 2006.
I'll try a one month break from running now.
Stretching (also of the lower calve muscle), eccentric calve strengthening, and generally strengthening and increasing movability of the 'core pillar' from the spine down to the feet. Occascionally it still hurts but I can control it.