Can be used with proportional valves allowing pure “meter-in” speed control coupled with dedicated load pressure control on the “meter-out” side.With the counterbalance valves porting oil directly to tank, there is NO interaction from the return side of the valve spool. Eliminates the requirement for special cut “ratio spools” for meter in/out variations caused by cylinder area differentials.Are available with shuttle valves for load-sense feed back, pressure compensator feed back, or piloting of a hydraulically released, spring applied brake.