So my short shifter arrived last Friday and went in this weekend. It was a little harder than rabbit is making it sound, but still went pretty smooth. The opening between master cylinder and throttle body was a bit too small for me to reach through (maybe it's smaller on first gen aveos) so I did everything from the bottom. Some places and connections were hard to see so phone pictures with flash helped a bit. Here are some pics I took along the way:
And here are a couple of shots of them side by side:
The shifter throw is shorter and there is no more slop in the shifter.