XCPUScalar is an awesome overclocking program. It speeds up your 6700 and makes it runs smoother. It is much easier than Pocket Hack Master and requires less time to set up. On mine the highest I could run it at was 520MHz, any higher would freeze my phone. It makes your phone run the way that it should. I have attached the cab.
Download The Trial
Here
If you would like information on how to get the full version PM me.