Any ideas why 3 of miners (out of 5) would be significantly under reporting M/hash's?
First 2 are fine at around ~200Gh/s that last 3 are at 166GH/s - all locally are around ~190GH/s - 210GH/s (overclocked S1's)
My hardware collects dust, warms up, and Hardware Errors rise, lowering reported results.
I use a small shop vac on reverse to blow out the units when I notice the rate falling.
ymmv