There has been a production change in the hardware for our UCAs. The lower mis-alignment spacer, and the spindle slug adapter are now one piece. We are working on updating the instructions that come with the arms, but it will take us a while to get them all printed up. So we just wanted to give everyone the heads up in case you already got the new spacers.
We're putting together a TW group buy special for these as I type. I'll post it in the GB forum as soon as we finalize the details.
Marco & Sonny