I appreciate your comment. Consider, however, that Burton designed this board specifically for pros and top level riders and by their own suggestion they reate the 160 cm as 3 sizes too large for the OP (and that would be with the assumption that he is a pro level rider). That is coming directly from the manufacturer who designed this model. We are trying to help this user out.
This is not the right board for him.
What I'm still not sure of us how 6cm, 2in makes this huge difference. I've heard of 5'11 people riding 168 boards and they don't have a problem.