So far we have two participants for sure. Plus you and one other have expressed interest, so we could have up to 4. The first test kit has already been turned in for processing, and the second should be along in a few more days. As I recall, it takes about 6 weeks to get the results back.
Over the next few days I'm going to be sending emails to people who have contacted me in the past about Rigsbys. I'd like to get representatives from at least the major Rigsby branches for the study.