I CC an LC9, just as it came when I bought it. Making it more visible by shining up the barrel seems to me to be at cross purposes with my intent to have it go unnoticed as much as possible by remaining dark and dull. It's a tool after all, not jewellery, and making it more visible seems to me to diminish its efficacy as a stealthy tool.
Also, since it's going to be out and about and handled frequently and not left in my gun safe for most of its tenure with me, taking off its rust protection makes for more maintenance, to no benefit, as I see it. YMMV of course.
Despite the cost of living, have you noticed how popular it remains?