It is a Star Plastic Roc that is produced as a fundraiser for the USDGC. I believe they are the Rancho mold (which is the most common mold...most dx rocs and the kc pro rocs are the rancho mold). I cannot tell you about the flight in star plastic of that mold, I haven't thrown it. I've tried a few different rocs, but I always go back to my dx rancho rocs.
Well, you're both right. They are Rocs that are produced for "throwing". They don't come with a holographic stamp or a cert. of authenticity (not a collector disc basically). I have bought several over the years and they have been in both plastics.
One you can live with out ! One time i was in Sweden and I was playing Rydskögens and I got this yellow champ roc I chucked it where I always chunk it as a up shot on hole two and I see kids run this way and that way I did not even see them back there come up to where my roc should be no roc I looked for days and never stopped looking even today in the US if I see a yellow champ roc it still hurts so now I just chuck thrower rocs and if I lose it I am not going to cry like that day in Sweden in the woods by myself
Most if not all KC's are Rancho molds. All the ones i have owned say Rancho Cucamunga on the back. I use 11x KC's cause i don't like the 12x plastic. The new Star rocs Being produced are the San Marino mold. They are indentical to the 20 year anniversary roc. I also have two 2006 usdgc thrower rocs; both are Rancho Cucamunga's in champion plastic.