While pulling out glued down wood flooring on a second floor remodel the top surface of the OSB subfloor came out with it. I was planning to pull out the badly damaged sections but it will be somewhat difficult because construction adhesive was used to attach the OSB to the truss joists. Is it possible to use some type of flycutter to route a new surface on the OSB about 1/4" deep and add an underlayment? Alternately is there another way of handling the problem?