Re: BFGMiner 3.9.0: modular ASIC+FPGA, GBT+Strtm, RPC, Mac/Lnx/W64, Merry Christmas!
idk if u noticed but ur running them at 0881 for 1.8 ghs when u should be running them at 0981 for 2.0 ghs just a tip 
Yes I know don't worry.
I may try 0981 again on v3 soon but using v2 at 0981 I got loads of HW errors so I'd like to avoid them for now. Also I don't have any active cooling so I wouldn't want to run the U1's too hot right now.ive been running in v3 for 8 hours at 0981 no HW errors what so ever
getting 5 more antminers today ill post a update on them later
if u want my command line here it is Code:
bfgminer.exe -S erupter:all -S antminer:all -S all --set-device antminer:clock=x0981 --icarus-options 115200:2:2 --icarus-timing 2.5=90 --klondike-options 362:65 --weighed-stats
that whole switching timing of the icarus is just to make it run steadier i found that out couple days agohttp://i.imgur.com/VoyQG8R.jpg
Thanks for the extra commands. I'm trying those now on v3 but I think 1.8 Gh/s per U1 is the max my hub can take right now - we'll see in a few hours time. I am running 3 BE's on the same hub so that could be affecting the overall hash rate.
Regarding HW errors, you're right, v3 is far more stable even at 0981 - gotten 1 HW error on one U1 so far. Very happy still with the results.