Wow kjm8888, those powerdercoated rails look awesome!! I think this is in my future as my rails have just a touch of oxidation or something.
Installed a kit from Pinball Pro this week too. Both the slingshots and the shark hole are LOUD now! I also installed speaker upgrade kits in both Johnny Mnemonic and Space Jams recently too, and was surprised how much variation there is in the results. Johnny has this rolling thunder type of bass with all the cyber "whoosh" sounds, and Space Jams has the most bass included in the music, along with letting me hear sounds I couldn't even detect before.