Here is my dilemma. I have roughly 1.3 acres. I realize that is not alot, but I don't get much time to mow with 2 young children. I want to buy a mower soon and I looked on the Cub Cadet website. I realize the Z-Force 50 is an extra $1000 compared to the GT1554, but will it cut better, faster, and last longer than the GT 1554? I used to own Scag walk behinds and a Kubota F2400, but that was years ago. Cutting time is critical for me and any insight would be greatly appreciiated. BTW, how is the stripping patterns on either or both of these models?