In case people wonder why their CGminer's hash rate doesn't match up, not even close, to what a mining pool says.
I'm using BFGminer and 14 Erupters. With '9', I get about 0.89% HW errors. With '14', I get 10%. All using the same Share Difficulty. I take the entire rig setup and plug it into my Windows box and get 0.98%
Setup:
.............................................-> 9 port self-powered HUB-> 9 erupters
BBB -> 7 port self-powered hub [
.............................................-> 7 port self-powered HUB-> 5 erupters
*Just swap the 'BBB' for Windows, and it's 0.98%.
This leads me to my conclusion that BBB (and possible Pi) can't handle the [read: Process] USB 2.0's full bandwidth.
*BBB is being powered via a USB cable as the DC port failed after about 4 days
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