To figure out the correct angle you need to draw a full scale cross section. Include the height of your bridge off the body, your neck angle, and also the height you want of the strings off the fret board, O and also dont forget the nut cuz thats a major thing too. If I didnt explain enough do a search on it cuz im sure there is a ton of info plus a tutorial or maybe a really good thread that explains it better. gluck
MzI