My guess is, you'd have to divide them amongst two controllers or something in order to get full throughput (and about 107GH) to all devices.
I have the six connected to a powered usb hub. i removed 4 now there are 2 connected to that hub and they seem to perform better. im guessing the hub's throughput is the bottleneck.
when i get home i will plug another 2 directly into the old laptop that i use as a controller and see whats going to happen. ill also try using 2 cheap unpowered usb hubs and see whats going to happen. (like the ones at '$2 shop' or something')
It also does fluctuate for me but not that low and the fact that all of yours are around the the high 80GH/s to low 90GH/s would not mean "luck of the draw". I would try to separate just one miner on it's own system/controller to see what it ramps up to. That way you can rule out that it's the POD but maybe the controller.
i do run them via a PCIe connector. Corsair GS800 to be more specific, although i still dont know if i should buy of those kits from parallel miners that comes complete with the server psu, breakout board and cables. i mean whats the difference right? even if on paper it can deliver more watts to the pods, the pods themselves cant handle more maxing out at >250mhz (in a stable manner) :thinking: aside from other things like longevity of the power supply and all that other stuff