Gentlemen, I intend to purchase a ZTR and have gained much knowledge from this site. Due to the availability of dealer support in my area, I have limited my choice to the Hustler Mini Super Z & Kubota ZG. Prices for the two are close. The kubota has a ROPS standard which I don't believe is available, even as an option, on the mini Z. This is important since I have about 10 acres of meadow with up to 25* grade, however the Super Z as a lower center of gravity & may be more stable on slopes. The Kubota has a shaft for transmission & mower drive vs a belt, hydro discs vs electro magnet for PTO clutch, hydrolic foot mower lift, dial vs pin cutting height adjustment. The Mini z has a Kawaski engine, the kubota a Kohler. I own a Kubota M5700 tractor & am very satisfied with it's quality & have had favorable dealings with the Kubota dealer. Please advise. Thanks.