I'm making several large picture frames using oak. The frames are 3/4" stock about 4" wide. I'm mitering and doweling the corners. I use a razor miter trimmer to get the miters accurate. This leaves a glass smooth surface, except for the wood pores.
My question is: Does anyone know if regular yellow wood glue holds better leaving the joints glass smooth or should I sand them a little with fine paper to rough the surface? I'm not expecting a problem either way but I just started wondering about long term strength.