Also to answer this question from March.. I do trace and I thank you for saying I work fast, I am very proud of my work and have been working on this project for a number of years.Hey, I've been watching your work on this thread for a pretty good while (it's amazing, massive kudos to you) and I had a question: how do you do it? You don't seem to be manually tracing, as evidenced by the ridiculous rate at which you produce these patches. Are you somehow getting QGIS to spit out raster images at the exact scale of the VT-BAM?