Hello, RSync developers!   My device network: Two main servers on fat pipes, a desktop, a laptop and a phone. Situation: The phone might be on a slow and metered connection while sending files (photos I just took) for backup. Or I'm travelling, I just moved my DSLR camera pictures to the laptop, and I want to back them up. Again, on a slow and metered connection. Problem: The stuff I want to back up might be 1GB in size, but I'm actually sending a lot more than 1G