No advice, but just to let you know, I feel your pain. My TIF was Deceraber 4th 2009.
I went off my PPIs for a few weeks, but was chewing tums and sleeping with my head elevated. Finally I gave up and now am back on one omeropzale at night. I occassionally skip a night, but all in all, I guess I had to come to the realization that the TIF was a flop.