I agree that Maple shafts break great, I have nothing against them at all. I've never even broke with a PH shaft.
It was more from an Aesthetic standpoint that I wanted a black shaft, and since Ebony is already a black wood it seemed the most logical.
TLD, if you find someone to make one for you, let me know how it turns out. I was really wanting to stick to wood, which is why my original thought was ebony.
Thanks everyone for the input, and more discussion is encouraged.
I know it's not the MOST original idea or anything, I have just always enjoyed ebony cues, and thought it would be an interesting twist to have a shaft that matched the black on the butt of a cue. And a break cue just seemed the most logical place to use it.