I'm using Rotobrush 2 for Rotoscoping on the job. It is an improvement over the previous version. However, it does not do well with large shots. My shot is over 2,000 frames and Rotobrush 2 takes hours to propagate. I can do small parts of the shot, but I need roto that last for the entire shot, so I've had to stop using Rotobrush 2 and use a mask with Mocha Pro. Please improve this on future releases of Rotobrush.