Odd, I thought headphones are really good at crosstalk cancellation (especially closed headphones) and that's the whole point of crossfeed, to add crosstalk and give a more natural feeling of soundstage. After all, real life has crosstalk, the delay between one and the other ear of a sound is how you can judge location... http://en.wikipedia.org/wiki/Sound_localization
Right now, to me it sounds like he's tripping balls.