Jim,
I am tube free, and have been for a long while now. Have you had any dilation done? I know that helps in some cases. Jim is right; you have to keep trying, small, SMALL bites of food, lots of water, lots of chewing, and paying attention when swallowing.

It won't likely be easy, but don't stop trying. I was told during radiation that it was imperative to swallow something every day. It only takes a short while before you lose muscle memory, and swallowing ability suffers profoundly. Are you working with a therapist? I think I would be asking about that if you're not.

They can give you a lot of exercises to do, and they help, a lot.
Wayne