2.) Did the first OTA cause the BT problem on the Amaze.
I bought my HTC Amaze in January 2012. I didn't have my access to my Plantronic headsets at the time. Before I was able to test the Bluetooth on my Amaze, the first OTA came out. I did the update and all was good. Then my headsets came in and I tried them all (3 total -Voyager Pro HD and Explorer.) The range with the Voyager and Explorer was about 1-2 Ft. I basically had to hold the handset next to the Bluetooth headset. The Explorer had a better reception, but both headsets were distorted with the sound of static and would drop connection with a mere turn of the head. After ICS I now get about 8-10 Ft. with lots of static at anything over 3 feet.
My HD2 running CyanogenMod 7 still gets 30 ft. line of sight. And 15-20 through doors and walls.... I guess I'm spoiled.
Thanks for any answers guys.