I'll just toss out there how I do it, when I do it. Just in case. I don't know what blades I get, but thery're a tad coarse, but make nice smooth cuts. Make curves pretty nicely, not really tight curves, but when I make curves if I can't make one tight enough, I just go back and make two or three cuts to make it as tight as I want. Then, if needed, I send the cuts smooth. Usually I don't have to sand at all, and usually just one cut does for me. But on the other hand my letters/numbers are like 2" tall usually. My stuff is not for a desk either, but on a sign post or some such, where perfaction is not such a big deal. But, however you do it, the other guys ways are probably better than mine, practice on scrap wood before you go for the gold.
"It ain't what you're told, it's what you know." - Granny Weatherwax
Some days, the supply of available curse words is insufficient to meet my demands.
Call me a craftsman, artisan, or artistic, and I will accept that. Call me an artist and you will likely get a quite rude comment in return. I am not a @#$%ing artist.