M_Boats: Deck repair

Hi All, Between availability and the small amount needed and the desire to not use balsa again I am ordering a sheet of diviney foam, scored on a scrim. The repair will take about four square feet above my v-berth in the M 17. Has anybody used this particular product? I am looking for personal knowledge hints on problems I might encounter with this stuff. I have read all the literature on installing it. Fair winds, Tom B M-17, #258, 77'