My job involves rounding over many thousands of small (2x3 inches) wooden parts. I have a VERY custom setup that's pushing small pieces through a table mounted router very quickly. Currently, I'm processing about 2 pieces per second. It's taken me about 6 years to get to this point. In order to process both sides of my piece, I currently have to put them through the machine twice. This turns out to be quite expensive in terms of labor, so I'm ready to spend the money necessary to fix this problem for real. The simplest way to optimize would involve a second router on the other side of the track spinning in a reverse direction. I've found a supplier for reverse bits. I understand that there are spindles that allow for reverse rotation, but I don't know how to mount them under the table in a way that I can easily adjust the height of the blade. I really like the SawStop router table lift that I got but I don't think it will mount a spindle, though the Jessum looks nice too. I've heard that you can mess with the wires inside a router to reverse the rotation, and this sounds doable, but there may be issues with the bit mount loosening up over time and I'm not sure if it would affect the life time of the router. Ideally, I think, a spindle mounted under the table sounds like the right approach, but I'm open to other suggestions. However, I don't know of a spindle mount that goes under a table in the same way a router table mount does. Any suggestions would be most welcome. If you want to propose a custom build, money shouldn't be a huge issue on this one. If anyone knows of a round spindle, that would also be super helpful. I'm not sure why they are all mostly square. No idea is too out there on this one.