After a while the lead foot operators push hard on the pedal and stretch the foot leaver , I resest my land cutting speed by having a operator take out a 15 year old walk greens mower 11blade and we follow beside it with the rider mower and set the speed.Ask the jak tech at a the conference what speed should it be and they told me it should be in the manual ,"Duh" but how do you set it ,A radar gun??