You will be fine. Make sure BOTH potentiometers read 1.5-4.V low to high and are = in Volts left and right when head is up. Then calibrate the AHHC to the header. You will need to do this again after the first days run when everything sets in. The lH sensor usually requires that the brace that it hits when the lever is in lower position has to be bent to the front to give the lever more forward movement to get this equal voltage. If you want to get really cute balance the table auger, set it down and back, make sure the springs are set for correct float weight and that the RH and lH ends do not bind up when max up and down travel happens.