So right now I am using the Nomad Factory LM-662 Dual Limiting Amplifier, a recreation of the Fairchild 670 limiter. I use this as the first plugin in my mastering chain to just even out the dyanamics, very lightly. As far as anyone who might master "In The Box", what are you using for this task. I will be getting the UAD pak soon. In about a month. So I will be using their emulation of the Fairchild 670.