My 2 cents. The installation is not that easy: cables are really tough to push a little back. I am not even sure whether it is better to slide the collars first and then bolt it down, or vice versa. In the end, if sliding collars first, then one needs to push two cables at the same time. Second, when bolting it down, the most inconvenient thing is the front right bolt. The short shifter is designed in such a way that (at least in my case) it is infeasible to bolt it with a socket wrench.
Second, the suggestion to use a sharpie was super useful. Basically, the left-right is easy to adjust when in neutral, simply make sure that it goes to 3-4 without any additional movements (thanks
@Pete B and
@Sakel). The other adjustable linkage is responsible for the angle of the stick, so does not affect too much I guess, so I leave it as is.
The only thing I am not super happy about is that the pattern is not fully H when sticking into 1 and 2. It feels like it is tilted slightly. That is why I have sometimes problems when downshifting from 3 to 2 fast. And for now I cannot switch into the 6th one right stand-alone, only after the 5th one. But I guess I need to adjust the set screws which is my plan for tonight, as well as tightening up the jam nuts (completely forgot about it).
Overall, it took me 3.5 hours that is not that bad given I had a little background in mechanics. And I totally love how quick it shifts 2-3-4.