To make CRT-OFF working, you need to decompile services.jar.
in file com\android\server\PowerManagerService$ScreenBrightnessAnimator.smalifind following code and modify it according to red colored part:
.line 2906
.end local v0 #delta:I
:cond_1
:goto_1
iget-object v7, p0...
I didn't experienced that but I olways flash after apply a big list of modes that I made for every build. I olways have more or less 360 Mb of ram free and 420Mb when I do a clean. Try to check if you have the option prevent misuse is activated. I use also last boeffla kernel