I am in need of a control valve for a b1640a loader. If anyone could help me out, it sure would be appreciated. I called several kubota dealers, and they all said I would only be able to use a kubota valve due to the third line for the regenative circuit. Does anyone know why I could not use a 2 spool valve, dual levers, with power beyong capibilty. I could use the power beyond plug as the 3rd line and connect back for the regen circuit. Any help would sure be appreciated!!! Thanks