I have searched this forum and also did a google search, but did not get any "hits" on this issue: I have a new set of (4) Goodyear Polyglas GT's. Just finished unwrapping the tires and cleaning them with Meguiar's D14301. I see that the nubs on the sidewall (I think the technical term is "vent spew" protrusions) are white with a black outer skin. I have not clipped any of them, but some have been torn off, possibly at the manufacturing plant or during shipment. The end result is a white dot on the sidewall which is noticeable at 10 - 15 feet or more. Surely, I am not the only one that has had this problem. My guess is that during the manufacturing process, too much white material was loaded into the mold.