I thought that getting parts cut using CAD dwg files was a cool thing. I found out recently that it really makes a difference what you feed your CAD file into. For example, these parts used to be cut using an oxygen fuel cutting process. The heat transfer caused deformation that made welding a time consuming process. These parts on the other hand were laser cut, a process that transfers very little heat. The parts for these sticks are almost exactly the same and it made welding 65% faster.