I think most are using the Colts but the latest batches seem to have the spindle problem so I am sticking with the Ridgid. It may not be as powerful but I'll take that over the spindle issues any day. The machine was designed around the 2400 and the 2401 isn't much different. The mount in the drawings works for it. For now, I'll turn mine on and off with the switch but a SuperPID is in my future hopefully.