I kinda agree but is there any good reason to oc them?
if you are lucky and have a stable unit, then you can get better GH/WATT relation.
check here for detailed info on this:
https://bitcointalk.org/index.php?topic=699064.460this is cut from the thread:
#option 'freq_value' '0982' #502Gh/s 402W/ 0.800W per GH
#option 'chip_freq' '250'
#option 'timeout' '16'
#option 'freq_value' '1306' #490Gh/s 385W/ 0.786W per GH
#option 'chip_freq' '243.75'
#option 'timeout' '16'
#option 'freq_value' '0902' #478Gh/s 367W/ 0.768W per GH
#option 'chip_freq' '237.5'
#option 'timeout' '17'
#option 'freq_value' '1206' #465Gh/s 356W/ 0.766W per GH
#option 'chip_freq' '231.25'
#option 'timeout' '17'
#option 'freq_value' '0882' #452Gh/s 346W/ 0.765W per GH
#option 'chip_freq' '225'
#option 'timeout' '18'
option 'freq_value' '1106' #441Gh/s 340W Default/ 0.771W per GH
option 'chip_freq' '218.75'
option 'timeout' '18'