- downloaded the Kingston update 1 to a temp folder.
- copied the installer to the CCC download folder.
- started CCC and it told me there was an update available.
- clicked update and CCC used the local file i had copied to the CCC folder.
It
did not download the update.
I don't know if Cake fixed CCC or this worked because I already had SPlat installed.
At least I can confirm that updates can be manually downloaded and installed via CCC.