Yo. I have a couple of questions regarding upgrading the SD card in my BCD436HP. First and foremost, I have the Provoice firmware upgrade and that is THE most important thing I have on the thing. Will changing the SD card effect that or do I need to take precautions? Does the firmware live on the SD card or in the scanner itself? Also, is the Radio Reference Full database on the SD card or does it live in the scanner? Will I need to save all that info in Sentinal? Can I just reload the database by updating in Sentinal. I have NO other Favorite Lists or settings I am concerned about at present. When I do upgrade the card, will this increase the start up time from off to active scanning. Thank you for help.