When will I learn to look at the edge under magnification EVERY time before wasting a half hour not getting results? I inked up a Case vintage that appeared to be in great shape (from the bay), made a pass or two and discovered nice even honing wear. I proceeded to do a bevel set on a 1200 Jfake and a full dilucot from there. The first third and last third of the edge developed normally and would pass hht3 right off the stone (la verte, my sweet no50) but the middle was not even close. I have finally gotten the TPT down well enough to use it and it confirmed the middle of the blade was not sharp. Looking at the edge with the blue ink I could not find anything wrong until I relented and went to the 25 power Peak handheld scope. There is a chip right in the middle about .05 inch. With higher magnification, I could see the chip was caused by corrosion and I figure it was holding that part of the blade away from the stone. Back to the drawing board. I hate wasting time, even on something I enjoy.