I just did the GeneSight test (fwiw) and the only SSRI that got flagged for me was Zoloft, which is the one I am taking with no positive results after more than three months.
Since it doesn't feel like it's working (compared to how I felt on citalopram) I am going to ask my doctor to switch me. If you happen to read this, Ian, which SSRI is the best for anxiety? Is there one that is objectively better? Should I try lexapro, since I did OK on citalopram?