Interesting.

So why not dynamically EQ?

Was listening to chilli peppers the other day. The mixing is amazing, but the vocals have this distinctive hollow sound due to the EQ shaping. I wondered why they didn't just change the EQ depending on what was going on around it. So for the solo voice bits they could have opened up the EQ, then narrowed it down during the busy bits with drums and guitars etc.

So.... when you're building a mix - each part is Eq'd to fit the busiest bit of the mix, and then left EQ'd in that state throughout the whole mix?