our house is about 10 years old, and the baseboard and casing has been beaten pretty good by the previous owners. my current plan was to replace the baseboard with 5 inch (currently 4) and redo the window and door casing to be true 3 1/2 inch all around instead of the current top "decorative" piece. I planned on a complete redo with mitered corners all around, but some of the door casings are cut down to fit crappy design. basically looking for alternatives to mitered corners, would a new top piece on a butt joint work? or should I just leave them as is? to me the top feels a little dated and about as barebones as you can get, anyone else have any luck redoing these?