Many Jeet Kune Do branches make use of the chain punch also, and sometimes in a more running-forward manner. There are a lot of places to look for ideas for counters--a JKD person from some lineages might say, try to duck under and shoot a tackle--but fewer if we're talking about traditional WC defenses.
My belief is that in martial arts it's usually paper-scissors rock--A beats B, B beats C, and C beats A--for both people and systems. I'd look inside the box for WC answers and outside the box for other answers. I know people who'd just fall or turn into handstand and kick you as they do it. That isn't in my repertoire, but I'd sure watch a WC vs. Capoeira match!
My belief is that in martial arts it's usually paper-scissors rock--A beats B, B beats C, and C beats A--for both people and systems. I'd look inside the box for WC answers and outside the box for other answers. I know people who'd just fall or turn into handstand and kick you as they do it. That isn't in my repertoire, but I'd sure watch a WC vs. Capoeira match!