Consider how long that flat top guitars have been around vs domed tops. Not that there's anything probably wrong with domed tops, but the longevity of flat tops proves that there isn't really a need for a domed top if you ask me. True, domes are stronger than non- domes according to the Romans or Greeks, whoever came up with it first, but the flat top does become a dome under string tension. Put a straight edge on your flat top tuned to pitch. I've been experimenting with neck angles via the mortise and tenon joints of my last 3 guitars. My angle is hovering around .5 degree for a flat top. The fretboard then falls away from that pivot point without having to sand in fall away. 2 degrees is what Gibson calls for for a bridge that is 5/8" high. Perhaps a dome calls for that. I don't know. For a newbie builder, I'd just be aiming for a guitar that looks, plays, and sounds nice. Those are my goals for number 14 because it's like starting over only doing one every couple of years.