Thanks jlord...... So, other than adding a little more work for myself, which I don't mind doing, there will be no any noticeable problems by gluing up the 1x's together (following your instructions of oversizing and milling down)?
Also, by "mill" do you mean cut or sand? So for example, do you mean to glue the 1x3 to a larger 1x4 so there's an overlap to both sides and then cut it down to size, or just over lap by 1/32th and sand it down? If I were to glue up two 1/3's and then rip a 1/4" off both sides, would it require oversizing? (sorry, not trying to be difficult here... just curious)