Got one of the USB power meters today, Measured the current draw on the USB port.

Before Pencil Mod
0.42A draw
After running for 40 mins
 BPM 4:       |  2.45/ 2.45/ 2.44Gh/s | A:168 R:0+0(none) HW: 61/4.3%


After Pencil Mod
0.848Kohms
0.71A draw
After running for 30 mins
 BPM 3:       |  3.03/ 3.04/ 3.02Gh/s | A:185 R:1+0(.54%) HW: 94/6.8%

BFGMiner 3.6.0
Orico USB 3 hub
PortaPow USB Power Monitor
   http://www.ebay.com/itm/221242144139?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649