1300 Mhz is your limit for the Black A2 units because of hardware limiters and smaller heatsinks. The silver A2 units do not have the hardware restrictions in place and achieves a constant 96 MH/s at the pool at 1320 or 93 MH/s at 1300. If you take the Silver units any further than 1320 you'll be doing 80 MH/s at the pool because of the invalid nonces's. These units are dumbed down from 150 MH/s so innosilicon wouldn't have to go back to the drawing board for the 110 MH/s units they are now shipping.

If enough owners complained we could get the source code and get at least 110 MH/s pool side with no hardware modifications or close to 150 MH/s with hardware voltage modifications.