I've spent a lot of time researching cc pistols and am leaning heavily to the CW9. I almost bought it this weekend however, I have nagging concerns about the polymer guide rail damage that I've seen reported on numerous sites (interestingly, not so much on this site) This ranges from a few minor shavings to what looks like major damage. I know from my research that the polymer rails are just guide rails to aid in assembly and that the slide actually rides on metal rails in the rear but I just can't understand why there would be so much damage to these guides. A small amount of shaving is no big deal but I've seen chunks out of the guides. Why such differences in the amount of wear and what is normal? This will be my first Kahr and my only other polymer pistol reference is my G17. I'd sure appreciate some insight from those of you in the know. Thanks.