SFS,
Sorry, I didn't see your question about Johnson's.
YES, it is perfectly safe to use on blued steel.
That's what I'm talking about. I've been using JPW on my blued steel firearms for years with no adverse affects at all.
I wouldn't see why it couldn't be used on laminated stocks, but I'm not sure it would be necessary. Most of the laminated stocks I've seen have been HEAVILY sealed with poly or epoxy.