I weight the fly. I have some that are not weighted and some that are weighted. I find it easier to just tie on a weighted fly that adding weight and the casting several time just to find out I had lost the weight I add to my line. But that is just my way, doesn't mean it is right. But to answer your question, I just tie up several weighted and several non weighted. But I am a woolly bugger fan. I also like rubber legs on mine.
Romans 10:9-10 KJV