[sambo]

Slowy, it's not that 'single' acting shocks only provide damping in one direction, it's that they're only adjustable for different rates in one direction. As I understand it, all shocks act in both directions. I guess with a nose heavy car such as the Cobra, you might be more interested in controlling the rebound at the front rather than the rear (hence dual adjustable up front), but I'm only taking an educated guess here.

With the AUD at better than parity ($1.02 today) I'd be ordering some QA1s or similar from the States.