Not sure how long it's been here, but I just noticed this warning on Sweetwater.com. It appears on the page of every version of the ProCo Rat: "WARNING: This product can expose you to chemicals including Diisononyl Phthalate and Antimony Oxide which are known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov." What's the deal with that? Is this out of an abundance of caution? Where in the pedal do these chemicals reside? I've not seen this warning related to any other pedal, let alone any other product.