Hey corgi! Don't get "Rub it on some concrete or a curb" into Newbies heads!
Lapping is time consuming, I should've taken before/after pics too, stock finish is a mess for sure. On glass- all wet(need wet paper btw ppl, water will just wreck regular paper). I started at 300 until the major nicks/gouges were gone, to 600 to get out the 300's lines and ended on 1500 three hours later(total) for a nice polished finish. If you harvest a wife/gf's picture glass, make sure it's washed good before putting it back
Granite slab is a great idea.
CT, did the baking soda w/toothpaste leave a nice finish? The 1500 did a good job, just curious about that paste.
Heh heh, speaking of blades, I wonder what a 6x6" honing stone would go for. Or even a rough stone... Probably more than a years worth of 300-1500 grit, lol.