My response is based on not being able to buy a new replacement if there was an incident that required it......... And they're heavier by a bunch than the aluminum equivalent........ So, unless they are extremely attractively priced, I don't see the upside.

I've tried to buy them for some tractor pull guys several times over the last 3 or 4 years, and they've never had any....... And couldn't give me a time frame for when they might.