Where does Apple Configurator store ipsw downloads? Every time Apple releases new iOS software, it's a bit of a rush to get things downloaded and the servers can be slow in delivering the bits.

I would like to know where the Apple Configurator Version 1.2.1 (169) stores downloaded iOS software so I could transfer the files from iTunes or another computer so I can have several machines grab one each of the builds and then distribute them to avoid having each machine have to re-download all images each time.

Can I move IPSW in to or out of Apple Configurator rather than having it control the downloads from Apple for iOS software?
Since Apple Configurator 2.0 they are downloaded in:

~/Library/Group Containers/K36BKF7T3D.group.com.apple.configurator/Library/Caches/Downloads/ACUDownloadFileOperation/


and stored in:

~/Library/Group Containers/K36BKF7T3D.group.com.apple.configurator/Library/Caches/Firmware