[zaphod24]

I'm specifically running an RPi2 though, in fact 2 of them because they're so awesome.

I changed mine last night to just gpu_freq=450 and no over voltage. I am also using "echo performance > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor" instead of force_turbo=1. So far, seems to be stable and when watching live TV at 1080i60 it doesn't drop frames, rarely skips any and doesn't "miss" many either (I am using the resample audio option and it shows missed frames in the info popup).

I actually ordered some heatsinks which should arrive tomorrow to try and keep the temps a little cooler when overclocking.