The front knob is held with two screws
Not only is the knob extra weight, but the two threaded holes should be a great place to anchor parts of the body. What body? Well, perhaps I'm being to generous with that term. The sander will need "something" to keep it centered in the 12" wide track, and until I decide what method to use I choose to think of this as the body of the racer. Trust me, if I'm going to the trouble of removing something as light as this knob I'm not about to replace it with a heavy body. I believe that style or theme is a portion of the competition, so whatever we do it needs to add something to the sander's character.