Jennifer, I will be getting a rescue B if at all possible. I have read up on the strip testing (looks like it is with diabetic test strips and done monthly.) I am thankful to have a forum like this with folks like you who will give such good advice.
I bred birds as well as one litter of Basenjis but am in no way an expert. I do, however, know how to read, research and request information with the best of them. I'm heartened to see that there is current research on these health issues. Tammie Jean was a very healthy girl until the end.
She was doing a B 500 and hit an afghan on a chest. The afghan slid (it wasn't supposed to be there). She went through the stair rail down a steep staircase. The vet found nothing wrong, but within a month her neck was stiff. She was in a huge amount of pain. And would wake up out of a sound sleep and attack my other dog. He always slept butt to butt with her, but her injury made her unreliable. He was so sad when I made him sleep away from her. We think she had a vertebrae or pinched nerve. I lived in Lansing, MI at that time. The cost to just see what was going on was nearly 2k. Her pain became unmanageable (she would cry just walking) so I made the hard choice to release her.
Gods, she was an amazing dog though.