It’s been discussed a bit in the “restoration tool project” but I thought it could deserve an own thread.
When I bought a Stanley No. 80 on a flee market last year I first thought that the previous owner attacked the sole with a hacksaw from all directions! Being used to wooden planes I didn’t know that the cast iron is so soft or in other words the wood as abrasive as it is.
Since I mostly use the no. 80 prior to the scrub plane, would you still recommend to flatten its sole from time to time?
I’ve read where people use these as a coarse tool to clean up glue lines and mineral deposits etc from rough boards. I suppose the need to smooth the sole would depend on how you intend to use the scraper. As a rough tool I would not be too worried about it, especially since you sau you would use this before a scrub. If the tool is to be used for scraping figured wood as a finishing preparation then I would want a smooth sole.