Do I miter (eek!) or cope them like when I do base? Thanks. EDIT: I was suffering extreme frustration with my first crown attempt today. I just realized that I was cutting OUTSIDE miters for my INSIDE corner copes. I mean, hey, the outside cuts slant back to overlap the moulding it's fitting to, right? In appearance yeah, but the curves of the moulding won't be accurately angled/displayed for back-cutting. No wonder my back-cut curves wouldn't fit. So, I will try INSIDE miters for my INSIDE copes' back-cutting. I bet they will match up just fine now. I hope someone learns from my goof. I'll post results.