I have had SetCPU installed since day one, but I just today started creating the profiles and everything, but it made a mess of my phone. The phone shutdown every 5 minutes and I had to take out the battery and put it back in about 15 times today. And when my phone was rarely on, it was slow as hell. (Even at full battery, where I had a profile set to run at full power, so it wasn't a user error afaik) I realized that SetCPU may have been the culprit, and the second it was uninstalled my phone started running fast again and I have not had a random shutdown since. So, if you are still experiencing the common random shutdowns, try to see if SetCPU may be your problem too. If it is, contact the developer and try to get an explanation or solution, which is what I plan to do tomorrow. Hope this helps.