I had a Scag, nice mower but rode like a tank at 10 MPH. Making a mower that can cut and ride good at 15 MPH is no easy task. Like I stated, when I go to a dealer and do a demo and it has flex forks on it that is not a good sign. Added weight always screws handling up,specially at high speeds.In something that moves fast weight is your enemy period. Just look at a semi. Have people tried pneumatic front tired?