Not the struts, but the upper strut bearing on the drivers side. It was making a plasticy groaning sound when slowly compressed, like driveways and speed bumps. Unfortunately, the problem still exists, so it wasn't just that bearing. I already have another letter off to Mazda about it.I also feel a minor clunk in the steering wheel when it happens, but that started later. Clearly something has failed in the front end.
The car drives smooth and straight as can be otherwise though.