Tein models like the HAs are hard, but the Wagon range are a lot softer. They aren't made purely for the track so there are some compromises. Also, by having something like 25 dampening settings helps find a good compromise.

I think the tram track issue relates more to how low you go rather than how stiff. Anyways, Melbourne's tram-track roads are nothing compared to Sydney's pot-hole ridden roads.

But at the end of the day, it all comes down to common sense and knowing what you can do with your suspension setup at certain speeds.