hey John, remember the bamboo backed Yew that Buffalo made at the first bowyers gathering? it was over 70#s and he dry-fired it! the glue held up, but there was a split in the handle and we glued it back together. he dry fired it again at the indoor, and nothing failed, he pulls this bow to about 30", anchors by his ear. ::)only buffalo... anyway, I used tb3 to glue that together, and have made several others without any failures. in fact, i tried to remove a bamboo back because there was a gap that I didnt like, i tried to drawknife it and it would not seperate from the yew without leaving wood behind, i had to re-sand both to reglue it. i also like it for sinew and snake skins. never tried urac, but I know Gordon uses it.