Hi Jess,
Yep, I remember well the Biofeedback tool.
It IS helpful; gives you an idea how well you are progressing.
The best advice I can give right now is to stay with it since you are making some progress. It can take awhile. The first time was 6 weeks and so too was the second time I did this. I THINK I said that it was about the 3rd session when I noticed significant pain reduction. But also, after that very first session I got some relief. I remember being able to drive home without too much pain at all...just the soreness. There is no harm in asking questions. Let me know what the other PT has to say and I wish you well.