Interesting discussion, though it seems to be turning into an argument. I do suspect that most of concerns about using silicone on some tool surfaces are probably overstated. But there is no doubt either that extremely small amounts of silicone in most finishes will cause fisheye. In fact most sprayers warn the user either NEVER to use silicone in the sprayer, or to ALWAYS use it. Strange as that seems, of course if you put enough silicone in the finish, the “fish eye” becomes large enough so that it doesn’t appear anymore. I have always tried to keep all my sprayers free of silicone. It is true as a substance, it is extremely difficult to get rid of. Working with catalysts in fuel cells etc, one must be very careful never to let anything with silicone even remotely close to such a device, as the silicone will inevitably migrate and poison the catalyst. (Even silicone seal is an amazing product, one that is almost impossible to remove without very dangerous chemicals.) I think we would also agree that we don’t want to coat the wood with either silicone or wax, as the glue won’t stick and the finish probably won’t either, but fortunately wax doesn’t migrate as easily as silicone. That said, if a spray lubricant that contains some silicone is used on a machine, and let dry before wood is passed over the surface, I sort of doubt that most of us would have problems. But wax works so well, why take the chance. A bit of wax rubbed on the planer table sure makes it work a lot better.