And, yes, I also use crossfed plugin while mixing on AKG K 701 phones. I use Redlime Monitor, 112dB Redline Monitor . Without such plugin mixing on headphones is impossible for me, balance is just all wrong without it. With plugin it is actually possible to balance instruments initially quite well. Of course you need to check it on several monitors later on, as usual. But with crossfed plugin you can get quite close. And sound is usually much better over headphones in the situation of small home studios.