The UberMix 3.1 only gets you to 24?
What if you take the 1625 timings and run them through nerdralph's tool?
Keep in mind that some of these guys have highly tuned timings that they've been testing and optimizing...not just some copy/paste jobbie. And some of them have been able to overvolt the VRAM and therefore I assume can get higher mem clocks/tighter timings than us normies. Unless you are willing to pay someone for a mod or learn how to directly control the VRM I wouldn't expect to get 30+MH/s.
I'm hitting 26MH/s right now when copying this strap 777000000000000022AA1C00B56A6D46C0551017BE8E060C006AE6000C081420EA8900AB0300000
01B162C31C0313F17 to 1750/2000/2250. I'm using 1150/2200.. and I undervolted memory to 925mV and core to 1087mV.