Hi surley, I'm so happy to hear your back is feeling better, I'm sure it won't be long before your neck and shoulders fall into line too. How long are you inverting at a time?
Are you not able to take off the 30-60-90 degree stops so that you can just go where you want? I haven't seen a table where you couldn't do that.
Anyway, if you're like me you'll find that even after all your pain is gone you'll still get on the table just because it makes you feel so good and relaxed.