Hi, As part of my reconstruction I had the forearm flap you are talking about.After surgery I had that "pillow effect". My ENT also said what yours did trim later if needed. It settled itself to what feels like my old floor of mouth, there was no need to trim. It seemed when I could eat and talk nature took its course and put all in place. I talked rather odd for awhile too.I have pieces of femur,wrist, shoulder, and skin grafts from both legs in my mouth, I often say everything but my foot and I can do that myself!It is good to keep positive and keep a sense of humor.Good luck to you.