Didn't get a good flash flashing over a nightly over a nightly. It was slow and buggy. I did not wipe anything though.
Did a néw install last night on the nightly and love it. Great battery, no mute/unmute issues and even GPS works out of the box!
Sent from my SGH-T959 using XDA
Phone: GALAXY NEXUS
Rom: CM9 All the Way