@MAX FPS based on your initial picture I hypothesize like others that your “plate” was more neutral at first but due to the loose bolt shifted downward over time ultimately ending up in the bottom most position. You can see that your green lines do not match up in the pic signifying that the plate shifted from its original setup.
A previous poster showed the same bottom plate position which just based on the design alone feels like an odd choice to set up the car. I think it’s a loose bolt that shifts the plate and leads to suboptimal gear changes.