Thanks everyone. I ordered my new SD card on 9/14 through the Brennan website, it arrived 9/17, and I installed it today. Couldn't have been easier. Everything is working fine and I'm fully upgraded. If anyone is reluctant to make the switch to b2b because you have to open up the unit, no reason to be. I did find it very helpful to watch this video first:
The video showed me exactly what I was looking for and where it was. Again, super easy. Thanks again everyone.