Genesis Mini Harvester actually has just three variables: output speed × scarcity × entry time.

First, looking at output: the rate range is from 100 to 1240, which fundamentally determines the efficiency gap of $RT acquisition.
Next, scarcity: 8 types + 24 variants, meaning different levels will create a tiered profit structure.
Finally, timing: reserved users enter 1 hour earlier, which is often more critical than the parameters.