After several months of touring, including appearances on the Warped Tour and March Metal Meltdown, the band and Wood parted ways, with Wood moving on to his own project, Shat, and Liam Wilson took his place. Later that same year, the band parted ways with Minakakis. Minakakis credited his departure from the band to the rigorous touring schedule. Without a vocalist, The Dillinger Escape Plan began a nationwide search for a replacement via their website, releasing an instrumental version of "43 % Burnt" from "Calculating Infinity" and inviting prospective vocalists to record and send their own vocal tracks. They received many submissions, including one with rapping and one with death growls. While the search was underway, the band had already composed some songs and decided to record an instrumental EP, eventually asking Mike Patton to sing on it. In the meantime, they played some shows as an instrumental act and invited Sean Ingram of Coalesce to join them at the Krazyfest in July 2001.