[hal]

What probably should have been factored in, was a set of rules similar to Basic Abstract Difficulty. High Population Worlds with A class starports should probably have a competition aspect to it that modifies your own skill roll for gaining contracts.

The penalty/bonus for taking unwanted freight types is likely not enough.

The problem I quickly found with Far Trader is that isn't sufficiently gameable at the table. Try to set up a program, and you not only have to generate the possible freight lots for the potential world you wish to go to, but all of the stops between your host world and destination world. It can be done, but the real problem is that it isn't something you can run at the table itself.