Guys, please make this clear - have you achieved more hashing power (stable long-term h.p. both at miner's and pool's side with normal reject/discarded/stale/HW rate) after S2 overclocking or not?.. 
Also - what firmware do you use, what clocks have you set?
Also - what firmware do you use, what clocks have you set?~1.08 TH average over several hours on nicehash, 218 clocks, latest stock firmware
1.12 TH average over several hours on multipool.us, 218 clocks, latest stock firmware
1.21 TH average over one hour on multipool.us, 218 clocks, Kano's firmware
CAN NOT use nicehash with Kano's firmware (invalid ntime errors)
All with a Corsair 1200W.