The Omnicam acquisition is a smooth machine in 4.6. I occasionally still use Optispray on long proximal contacts and shiny metal surfaces. Each version of the software since the Omnicam arrived on the market keeps getting better and better. Using the digital wash technique of scanning the occlusal surface first, then role and stream the buccal and then the lingual for a quadrant or full arch scan constructs the best models and helps avoid over-scanning.