/diy/ - Do It Yourself

I have been doing carpentry for 10 years, or so, using only hand tools, no power tools, and my dream is to get so precise with my cuts that I dont need nails or screws or glue to hold a piece together. Trouble is that it never quite works out that way. I keep asking myself, Is it because I am working with pine only? is it the tools or the techniques I am using? I can cut straight. My measurments always work out, but somehow I just cant get that extra precision I am looking for. Should I take some classes with a master carpenter? They are expensive but I am a dedicated hobbyist. Is there anywhere online that can teach me about getting that extra something my carpentry needs?