I have a new 3720 with Automotive E-Hydro, Cab & Larger R4's. My problem is the ground speed is not as fast as the owners manual figures, for example range "C" top speed at rated engine speed is 8 MPH. Now if I turn one the cruise control and keep hitting the + button I can get around 17 MPH. This is true in all ranges, the only way I can get max. speed is to use the cruise control. Reverse works fine, just the pedal itself will reach max speed in all ranges. Could anyone help me with this. I think the speedmatch option may be my problem but I am not sure.