in ideal, though you overclock, you use a lower voltage than the default one, so ideal profile is still pretty much safe for you mate, you can make sure by monitoring the battery temperature, after installing rootsh and the enhanced kernel, type this:

sudo gainroot
modprobe bq27x00_battery
cat /sys/class/power_supply/bq27200-0/temp

xterm will print the temp for you to check, i think under 45 is safe, mine never went over 40 though.