My Video: http://www.youtube.com/watch?v=cR5c6UJrxEc My Take: They all sound great. The DMM has the best trails ... it doesn't get all lo-fi and bright when it's going into oscillation. It also has WARMER modulation, but the Earthquaker gets close. The Earthquaker has a volume boost that I hate, but that might be fixable, I haven't opened it up yet to look for a trim pot. I also don't like how quickly the Earthquaker gets into oscillation so quickly ... the repeats start to get brighter and lose their warmth. Otherwise, the Earthquaker is freaking sweet. MXR kind of falls in the middle, but as you can see in the vid, the modulation is only noticeable on lower delay times ... which totally sucks. Slapback is the best on MXR and DMM ... Earthquaker is voiced to dark for this IMO. All great pedals for different needs. PLEASE DON'T ASK ME TO DO A VIDEO WITH DIRT or OSCILLATION! IT'S JUST NOT FUN!