A few people that have bought 2nd hand 3C pulleys didn't get shims with them. I know the dealer doesn't sell them separately, but not sure why a similar product can't be found like you said Woody. I measured a few with a micrometer and they are various paper thin sizes, so not sure what this place is going to make. It's not gonna be a money maker for anyone, but may help a few down the road. Also, might be beneficial for EC to pick them up if they ever release a s/c pulley...