I use my tuning board to check the drill job and alignment of my car bodies before moving too far into the build. I have learned every one of these steps here on how to build the speed square jig, how to build light bodies, and how to drill axle holes and check for wheel migration. This site is a wealth of info, just want to say thank you! I am a visual learner so i figured I would show a quick shot of what would take me pages to explain in writing.
https://www.youtube.com/watch?v=jCt1Wo9hqE4&feature=youtu.be
https://www.youtube.com/watch?v=jCt1Wo9hqE4&feature=youtu.be