I do really low doses (right now 7.5 every other day) and find that works for me. I will add that I use other meds, plus have had immunoablative chemo to "reset" my immune system. However, even before the chemo, I rarely used over 20 mg per day, and almost always have done every other day dosing, which greatly reduces any side effects.

I'm a pred lover, as it has saved my life more than once. I hope you have great success as well.