Some time ago I bought a SB #3 off ebay. pretty fair shape but could never get it to take thin shavings. I finally figured out that the chip breaker was too long for the plane. May have been switched or just flattened out wit use(?). A little metal work to shorthen it and regrind the fit between the chip breaker and the blade and I’m getting .002 shavings. The blade is a bit dull and not perfectly square so a little bade work should get me under .001. Still, as is, a lot better than a ROS. I am stoked!!!
-- The expectations of life depend upon diligence; the mechanic that would perfect his work must first sharpen his tools. Confucius, 经过艰苦的努力的梦想可以成真