I'm also a big wood fan. I prefer the after market in most cases, Spegel, Sile, Hogue and particularly Nills.
I really like the Nils grips because they
Dimple the rough areas instead of checkering. While this is far more labor intensive than checking and so drives the costs up, there are no sharp edges to abraid your hand like some checking does.
Here is my SiG 230 wearing Nills grips.
High Res full size pic for more detailOn their smooth grips they do a mat finish that is easier to grip than the shiny finish most makers use. Here is a S&W M-27 wearing the Nills smooth combat grips. I was shocked when I first tried these. I've used combat grips from the manufacturer, Sile, Spegel, Ahrends and Hogue, but none felt this good or were as comfortable.
The fit on these grips is phenominal. They are held together three ways. There are the pins on the frame that position the grips, a separate dowel at the base of the grip that helps position the halves and then the centerpoint screw. The ledge inside that mates to the frame is so tight that you have to tap it on or off with a plastic or rubber hammer. There is NO play, even without the center screw installed.
You can find out more about Nills grips
Here.