Ive been also having screen freezing and SOD issues with the last few release,6.5.X CHT Dinik Glass releases are the only ones i use just because i like the look of them. So i cant speak of the performance or bugs in any of NRGZ other roms.
Removing Arkswitch from windows/start up/then delete Arkswitch, i also went in to device/program launcher/delete Arkswitch,and last into windows/start menu/delete Arkswitch,and then delete Arkswitch from any other place u can find it in total commander,there will be a cpl files that cant be deleted because Arkswitch is cooked into the rom but if u delete all the Arkswitch positions above Arkswitch wont launch or run or affect the rom at all,and removing arkswitch seemed to have solved about 90% of my screen freezing and SOD issues.Now i just use the Task Mngr that comes up when u tap the upper right corner,the clock,to close apps,and use the memory icon to check memory.I know its kind of a pain but not nearly as much as having my screen freeze or SOD issues up to 20 times a day. I dont know how the new updated release of Arkswitch will perform, but if NRG switches to the newest Arkswitch then we will know.Im kinda hoped NRG will try a different Task Mngr for a change.
Im also downloading the Sept 13 23XXX CHT Dinik Glass rom release. Id like to see a changelog before flashing but if its not up pretty quick ill just flash it and give it a spin and if i dont like it then back to the Sept 4 release for me.