The other thread about blade cleaners got me thinking. I've got a thin kerf ww2 that is showing its age. It gets light use. I've never cleaned it before. The teeth look good and the cut is still ok. But it doesn't feel like it used to, seems like it takes more force to get something through the blade. At what point should I sharpen this blade? Will I notice a huge difference after cleaning or is cleaning really only if you do a lot of cutting in woods with a high resin content? thanks.
brian