If anyone's interested, I had one of my carry guns (my XDm 3.8) finished at Robar. I got the nelson special w/Roguard on the slide and np3 on all the internals and the external controls. I'm very happy with it. The cost was $199.99, no shipping because I live in Phoenix.
I don't really need anyone to validate my choice here (or criticize it), just trying to contribute to the forum. When I was thinking about doing this, I couldn't find any photos of what the Nelson Roguar/NP3 finish might look like on an XD or XDm. So, here's some before and after for any potential Robar customers:
PS: if it looks like there's "pooling" anywhere, that's just the lighting on the satin black finish. There is no pooling anywhere, the work is superb.