Thanks...I don't have True Oil, though I used it once on a gun stock and found it full of hardeners so I was put off it. Is there anything else I would need to use or just leave it?
When you use Tru-Oil on a knife scale you rub in, then wipe off all the excess and let dry. Repeat as many coats to get the desired amount of gloss. Just a couple of coats leaves a pretty decent matt finish that is more like "in" the wood rather than "on top" of the wood the way a high number of layers built up for a gloss finish.
Another thing to consider is how "SHINY" you want them. Some people pour or dip them in Super Glue let them dry and polish them! Not my deal I like the WD40!
G10 is not all the same. Some has large weave glass mat (it's basically fiberglass) some has smaller weave and better penetration of resin (pre-peg epoxy really) into the mat than others. Anything that can soak into the fibers and then harden will work. Usually I just buff it with green chrome or pink no scratch compound.
This will come off as a sales pitch (disclaimer: I sell it, so do others) and it's not. Ultrex G10 from Norplex has a much smaller weave (and fiber size) than most anything I've found. It also has pretty good resin penetration. Sand and buff it and it will look great. I won't use any other G10 now.