Nice. When I first saw this feature was a possibility I wondered if Quake style tilt-strafing might be possible. I thought I might have a go at implementing it myself. However, having now seen how you did it, I'm pretty sure I'd have made a mess of it.
To me this feels pretty good. It's there enough to be noticed but not so much that it becomes too obtrusive. Mind you, if you just strafe back and forth for a while, I'm pretty sure you'd get sea sick sooner or later.
