Yeah - I know about the release compound and such. It's not that they felt slippery, they definitely grip and bite OK under modest turning. But the turn-in feels sloppy and the tail end of the car also feels uncontrolled. Do you feel strongly that this could be due to the release agents used in the moulding process? Anyway, I'll hold judgment for now as I know some amount of break-in is normal. Maybe another PSI or two would help...