I have similar hair growth on the neck. I do WTG and ATG passes and it looks like a smooth shave, but when I touch it I can feel the stubble.

I've mostly learned to live with it because it would take me a lot of time and irritation to get a BBS on that area. However, when I find the time, my technique for a BBS in that area is to use 1/4 circular strokes, starting ATG and ending shaving XTG. I do this carefully, with the blade mostly flat against my skin, to prevent cuts.