Healthyboy

I have two 10 TB USB external HDDs in a pool, I'm using this pool to backup my internal HDDs pool, my concern now is when I'm done backing up the data and I need to disconnect the external HDDs, I thought about disabling Windows write caching on the external HDDs so that I could just yank the cables and be done, would that be enough to ensure that no data is lost after disconnection ?

Is there a way that Drivepool would balance data in real time ? So lets say that I'm copying a huge amount of data to my pool, is there a way to force it to do realtime balancing, so that at the end of the copy, the disk usage is already evened out ? I'm already using Disk Space Equalizer, but its not realtime.