As Before:
All warranties void perform at your own risk.
My view: these are a toy, I dont care much if I break them, do you ?

R15 was modded, I used what I had around, looked like HB lead in a pacer automatic pencil.
Not sure if it means anything, I threw the multimeter to measure the resistance across the resistor 'in circuit'. measured 0.97K ohms, after the mod it measures about 0.86Kohms.

It's been running for over 13 hours with the same speeds and error rate as I posted last night.
As my pics above show, make sure you have adequate cooling.

I'd like to get a USB current meter (like: http://gizmodo.com/usb-power-meter-tells-you-which-devices-will-kill-your-514285397 ) to see if there is an increase in power draw from the hub. anybody got reccommendations ?