I really have no plans for the thickness and etc..I have a profile in my head I wanna use, Im gonna shape it after my Japanese Squire 86 Standard Strat neck, and have 24 frets, and have just the fret board and a little bit of maple come behind the neck joint for the last few frets, sorda like the way you do 22 fret necks. It should be a desent thickness, the tipical thickness of a strat neck, but with a domonate V shaping to it in the center, but rounded on the edges like a C shape neck..I have only seen bass graphite rods so, Im assuming that it isnt very common for someone to use them on a guitar, But im sure, no matter what, as long as i have the rod slots cut right, there would be no chance of twisting or warping...
I really have just random idea's about the whole project..Thats why I havnt made a HUGE jump in gettin started with it, to many ideas...