The post appears to be a complaint about difficulties in fine-tuning car setups and understanding driver feedback during races or practice sessions in an unnamed racing game, likely Motorsport Manager Black Sea.

Here's a breakdown of the main points:

1. The player feels that when they create a setup based on their experience (presumably from playing previous versions of the same series), it doesn't consistently translate well to actual gameplay.

2. They mention that there is no clear explanation or indication of whether increasing or decreasing certain values in the setup will improve performance, making it feel like trial and error.

In response to these issues, here are some potential tips:

1. Understand what each value does: It might be helpful for players to consult game documentation or online resources that explain the purpose and effect of each setting within a car's configuration menu.

2. Analyze driver feedback: While drivers may only provide generic reactions like 'happy' or 'sad,' paying close attention to these cues can give hints about specific areas where improvement is needed, such as cornering speed, braking distance, etc.

In terms of practices' purpose:

1. Practices are intended for players to experiment with different car setups and fine-tune their driving skills without affecting actual race standings.

2. They should allow you time to test out new settings in a safe environment before applying them during actual races or competition modes where mistakes can have consequences.

If none of these suggestions help, it might be worth checking the game's official forums for discussions related specifically to setup tuning and performance optimization within Black Sea, as other players may share similar experiences and tips that could prove useful.

Motorsport manager black sea f setup