Xerox 560 Command worstation 6 image parameteres

Hello, i own a Xerox 560 with a Fiery FreeFlow server (FS100), and i still don't understand exactly the impact of these image options if anyone can explain to me that would be great.
What should i base my choices on when configuring jobs (150 points,200...stochastic) i have a basic understanding of what those mean in theroy but do they have an impact on toner usage for example, image quality ? also the 600ppi or 1200ppi when should i go for those?


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