Although it is a long time since, I am still having the tearing problem when in fast disc mode despite updating firmware and drivers for my cards. Recently I used a third rental machine in which I installed a Raptor and the tearing occured there as well.

On my machines I am now running a 4 raptor striped raid and in fast disk mode I can run 5 to 6 layers at full frame rate but in slow mode it is back down to 2 solid layers at 25 fps.

I'm hoping V4 somehow solves this problem.

Cheers

Toby