I would definitely radius those corners on the back edge of the shifter mount. Maybe even lop off an inch or so beforehand as well. Looks great otherwise.
The back is radius'd. You can't see in the pictures I posted but it has a 90* bend on it and radius on both sides that goes down toward the seat, there are no sharp edges anywhere. I did leave it a little long for a switch panel to mount behind the shifter for future use. Ignition switch, start button etc. It will take me a little while to get use to the idea and it being there.