About a week ago I upgraded firmware (yes it's old firmware I just never did it). But after a week no problems with the firmware.
One is a little more babysitting with the X's but that was same before. Other works all days if not weeks no problems.
What is the firmware date that you are using now?
I went from stock batch 1 firmware to the "SD-C1-20141217.tar" firmware. So it's retaliative old but I just never got around to doing it.
But it's working for me just as good as stock did, so no regrets on updating.
Anything seem improved that would warrant violating if it ain't broke don't fix it?