Yes, it is mounted the correct direction. I was hoping for that, too.
I believe it is the tread somehow. In a corner, the buzz completely goes away to silky smooth. It was actually a bit scary at first. It feels like you are suddenly sliding smoothly through the corner.
I have found that it will also smooth out on sharp lane changes. I have tried different pressures and found that the higher the pressure the easier it is to lean and get rid of the buzz. So, I think it is the tread. It's ridiculously buzzy, though.
I haven't been riding much, but I am hoping a nice flat chicken strip will eventually get rid of the buzz.
I won't be buying on-line again.