I use TiteBond3 as well as wrappin in plastic wrap and the clamping thoughly. However, when I first started this process I was gettin mixed results, some good, and some not so good. I found my problem. I was applying the glue to the backing and puttin it on the stave and clampin it. I now apply the glue to both the backin and the stave, then put them together, and then proceed with the wrappin and clampin. Oh ...I fergot...I always score each surface and clean them with denatured alcohol to remove any oils, before I apply the glue. Haven't had a bad glue joint since.