I bought a first gen 17 a few months ago with the intentions of hard chroming the slide and/or polishing the barrel, slide stop, and pins. Buuuut this gun has not been shot very much due to the lack of wear on the top of the barrel like I have on my 19 and 26. It has a few small wear places on the slide but nothing serious. The serial number doesn't have three letters and three numbers, it has two letters and three numbers, AW xxx . I dated it on the sticky provided on one of the forums here and it was made in September 1986. My question is: should I or shouldn't I make any modifications to it? I can't imagine it is anything special, but just my luck if I were to alter it in some way I would discover shortly after that I depreciated some super rare firearm and that it is now worthless.