What I think you need to do is use 8.19INT for the 111L & then 8.29INT for the 111L again. They are here .
Reboot each time.
Apart from the warranty there are no downsides as far as I can see.
This flashing will give you DVD-RAM writing, LabelFlash & DVD+R bitsetting.
I've done it as have many others here, although I went a slightly different route getting there as this one wasn't available at the time.