I was doing some front loader work with my B2710 HST in low range the other day and the pressure needed to manipulate the HST pedal increased to the point where it almost felt like something was jammed or stuck between the pedal and the floorboard. In forward, for example, it would move slowly forward then I would push harder and the tractor would jump forward at full speed. It is difficult to describe but I am hoping someone else has experienced something similar. The fluid level is fine maybe a tad high.