For some reason, I always get calf stiffness during the colder months. I have experimented with a home-made roller (PVC pipe w/ensolite foam glued to it) and recently bought a nice trigger point one.
You can find plenty of videos on the TP website for how to use them, but they say nothing about before or after a run. Maybe it does not matter?
one or more gifts or other benefits from the co-op.