The man of many DL4s, Dave Knudson, has pared down since 2013 when he had four of those green devices. He has since reduced the DL4 population down to three and swapped in a Strymon TimeLine because 2017’s VOIDS features many of the unit’s ambient, washy delays. Everything else has pretty much stayed the same aside from taking one Boss RC-3 off for a Boss RV-3, and swapping an original Ibanez Tube Screamer for a Mini version.