To rehash my previous review:
I ran into some trouble when I first installed the spacers. The spacers as shipped had a bit of an upward curve towards the keyboard end which lead to them not latching in and securing properly. I was able to bend them into a position where they fit but the spacers now have a slight deformation which is quite visible under certain lighting conditions.
Given that there are only three touchpad orientations available (left/center/right), I would suggest making three “unibody” touchpads to cover each orientation.