Anyone used the M model DT 770s? I'm looking at picking up a pair and these are the isolation version designed for drummers... Is the sound exactly the same as the regular non isolation DT 770 model? The reason I'm interested in the isolation model is that I do a lot of my tracking in the same room as my computer so I think it would make it easier while I'm trying to place my mics if I can hear the mic'd sound through my headphones better than the live sound in the room, or at least better than I would using the non-isolation model... Any info would be appreciated!