This paper presents the creation, deployment, and evaluation of a large-scale, spatially-stable, paper-based visualization of a software system. The visualization was created for a single team, who were involved systematically in its initial design and subsequent design iterations. The evaluation indicates that the visualization supported the "onboarding " scenario but otherwise failed to realize the research team's expectations. We present several lessons learned, and cautions to future research into largescale, spatially-stable visualizations of software systems.