... The architecture of Montage, which delivers custom science-grade astronomical images, was presented at ADASS XII. ... It exploits to the maximum the parallelization inherent in the Montage architecture, whereby image reprojections are performed in parallel. ... We will present processing metrics and describe how Montage is being used, including its application to science product generation by SIRTF Legacy Program teams and large-scale image processing projects such as Atlasmaker (this conference). ...