The guide rod in the sig pro is polymer. I was looking into finding some type of metal replacement rod, and found a recoil reducer that would in effect give me a metal recoil rod. Are these things bullshit? Will it actually help with recoil? I'm going to get one anyway just to replace the rod, but it'd be cool if it actually helped with recoil as well. Here's a link http://www.sprinco.com/recoil.html Is there anything else I should look into upgrading? I'm also getting a .357 sig and 9mm conversion barrel.