russel39: Chainline problems causing premature wear on lightweight aluminum chainrings? How about a 1/8 plate stainless steel chainring, then you'll be fine.

No doubt Phil is "objective" about selling Phil products, they'd be out of their mind not to. I picked up the Phil steel cog 1/8 over the rest. I almost rested on a Surly 1/8 steel but the local bike shop didn't have the right tooth count in stock so I special ordered the Phil & Co spec. Boy, am I glad I did. Do it right the first time or go home.

Here's a pic of some quality, not mine. Dura-Ace lock ring shown (this setup was mounted to a Suzue gold disco high flange track hub)