Fantasy baseballers, I come to you today with an admission: I’m a total hypocrite. I am the first person that will tell you that the computer-based projection systems like Steamer, PECOTA, ZiPS, etc will beat a human-curated projection every time. And yet, year after year, I find myself *tinkering*. Changing an ERA/WHIP projection here, increasing a batting average or HR-total there. There are certainly areas where the computer systems fall short, since they don’t know about injuries, can be slow to adjust to real-world depth chart changes, and tend to be skeptical of breakouts. That’s why I’ve created tools that allow me to go about this customization/adjustment process in a much more systematic way. With a series of fairly straightforward inputs, these tools convert peripheral numbers into projected statlines, using models originally detailed here which are scaled to the total #’s projected by the Steamer projection system. Thanks to these handy tools, I’ve been able to integrate all of my preseason research this year, including injuries, xStats, and depth chart info, into a set of over 200 custom projections (included in this year’s Big Board). But, I’m all about empowering you all to do these things yourself, so what follows here is a comprehensive tutorial in how to build your own custom projections.