My only (intermittent) insignificant concern is, is that the Intel Macbook (hooked up to 'PC1', and so must be powered by Macbook power offer connected to the 'PC1 PD' port) often doesn't get billed. This is not a massive offer, since realistically Talking, the 'PC1' Macbook is about 12" away from the docking station, so I can certainly unplug the