Cool 98, from the looks of that picture you are very balanced...I don't put to much into negative or positive tiller when it comes to a stave bow...Don't know if I could accurately measure it anyway, unlike glass bows, stave bows can have so many variables, Differences in limb thickness between both limbs, undulations, slight limb twist, etc...Positive or negative will be an ending result from good balanced tiller on a stave and I accept what ever it is as long as it shoots good and feels balanced...
Don