Co-produced with Casper van de Lans, Willem Smit, the group's conductor and cheerleader, rummaged knee-deep into the strongholds that conceived many of the past decade's quintessential Dutch alternative records. The quest to squeeze out the most potential out of each song might seem somewhat at odds with Personal Trainer's tumultuous modus operandi (which included a 24-hour concert streamed live at Amsterdam's legendary Paradiso last year).