Is this thread about cutting tracks before pressing, or about mastering tracks at the recording stage?

A cutting engineer only has so much to work with. Attend the cut if you can or otherwise be specific in the instructions and let them know what you want. Before it gets to that stage, make sure the track sounds right in the first place. Do this BEFORE you record it. Changing things afterwards is far harder. Don't bother with buying some expensive mastering gear, just learn how to use EQ and set levels, it's easy and can be done on budget gear.