i personally like them and used them in my Alcohol blown injected motor, the claim is the coating makes the bearing last longer,,calico makes 2 types of coating a teflon based coating and a dry film coating..of course the teflon holds up longer so they claim..i am not sure what they use the dry film stuff on...
however the main purpose of using them in the alcohol engine was to help protect the bearing from alcohol wash down.
they also claim that the coating's provide's a anti-friction which is great for tighter tolerances.
we have a company that uses the coating on anything you take to them..i also had a set of pistons done in my wifes 406...
Brian
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Bjuice..
"I'M YOUR HUCKLEBERRY ! "