I'm using the Hydra Kernel. I'm currently using v0.7 with the 25mV over volt. I just checked and v0.8 is out. I'll give that a try and see if anything changes.
At the time, Setcpu was set to under clock at 50 degrees Celsius. Two days ago my phone was in the upper 40's, I think it was 48C. I was web browsing outside in a low coverage area with lots of people around and it was about 95F (35C). I checked my brother's DInc and his was reading 38C and not being used.
I think all the conditions about add up to a phone running hot. I lowered the temperature limit to 40C. Everything seems to be working fine still.