A lip shroud may include a front, wedge-shaped portion, an intermediate transition portion, and a rear mounting portion opposite the front, wedge-shaped portion. The intermediate transition portion of the lip shroud may be configured with at least one upwardly and rearwardly inclined transition surface that merges into a front edge of the rear mounting portion. The at least one upwardly and rearwardly inclined transition surface may include two opposite side, upwardly inclined surfaces that extend between rearward side edges of the at least one transition surface and substantially an entire length of each of opposite side edges of the rear mounting portion. The two opposite side, upwardly inclined surfaces may include outer side edges configured to form a smooth, upwardly sloped and outwardly convex-shaped profile merging into the opposite side edges of the rear mounting portion.