This is my latest, recutting a pre-64 that had been sorta recut, but filled with way too much finish. I used the Brownells carbide tools. Now, this took a good while, probably several hours per panel. A real pro can turn out the work much faster.
I have a magnifying visor that I wear, have a light that I place at an angle to see the grooves better. It is sorta tedious and I send out work, mostly. This gun had already been "bubba'ed", so I wasn't too worried about messing it up. If so, I'd have sent it out. I was working on an old pre war Superposed with orange peeled finish. When I found out who owned it, I immediately took it to a pro to restore the wood and recut the checkering. Here's that link. Pretty long, but an interesting read.
http://www.shotgunworld.com/bbs/viewtopic.php?f=53&t=124719 No way would I attempt to work on a gun with that provenance.
Here's the link to the pre-64 project.
https://www.24hourcampfire.com/ubbthreads/ubbthreads.php/topics/15163238/5 Scroll down to find the picture with only one coat of Tru-Oil, brushed out with a tooth brush so as to not fill up the grooves.
DF
