Does lapping hones cause grit change?
Ok, so please forgive me if this subject has been touched on before. If this subject exists in another thread, just point me there please. This might sound like a silly question but it still seems logical to me. I am asking this as I have lapped a few hones recently and wondered if I am changing the "grit" of the hone?
For example, let's say I have a NOS barber hone or a NOS coticule, doesn't matter what kind of hone it is but we say it has never been used or lapped. Lets say we take a vintage barber's hone that has a grit of 10K. If I lap it with a 250 grit sandpaper yes it will be still composed of the same material, of course, BUT wouldn't the hones surface now be much "rougher" after sanding with a 250 grit? Does not a rougher surface then change the grit of the hone? If we then take the hone and move it up to 500 grit sandpaper and then lap it on that, it now has a smoother surface than it did after lapping with the 250 not possibly not as smooth as it did when it was manufactured. A smoother surface again does not mean a higher grit rating?
I guess I am wondering if I can be taking the optimal honing effects away from a hone if I hone it with too low of a grit of sandpaper or if I go too high with a sandpaper like 1000 grit. Is it possible to put TOO much of a smooth surface on a hone so that it is no longer doing the honing job it was meant to do (with a slightly rougher surface)?