Ok, here's one for the knowledgeable ones out there. I'm thinking about getting a slide of of ebay for as cheap as possible to experiment with polishing. What do I need to look for as far as interchangeability and fitment for my C9. I bought my gun new in box in October of last year. Just wondering if most slides will interchange, or do I need to just work on the slide on my gun now? Just wanted to experiment without disabling my gun if possible. BTW, I watched a short YT video on disassembly, piece of cake for me, (except for recoil spring across the room once LOL). Really don't see why it is so hard for some, unless I was just lucky. Anyways, any info on Ebay slide appreciated.