There is a gentleman out there making stainless steel guide rods to replace the plastic crap that newer Sigs have been shipped with.
Now, I have not had any trouble yet with plastic rod in my P226, but if given an option of replacing it with a beautifully machined piece of stainless steel for under $20, I'm there.
I have never met this gentleman and never spoken to him. All our communications have been by email. He shipped promptly and accepts Paypal.
If anyone is interested in his contact info, let me know and I will provide it.