The side to side issue: the jaws of the jig are flat, square pieces of metal. A kitchen knife, for example is a flat piece of metal with an edge. So, when the jig grips the blade, everything is "square". The hunting knife, on the other hand, isn't flat on its sides...it has the convex/concave contours....so the jaws of the jig are trying to grip a curve, its difficult to get the blade 'gripped' with the edge exactly lined up with the center of the jig jaws. That results on different bevels on each side of the edge as the knife is flipped from side to side.