Since NH went to a torque sensing drive ( beginning with the 86_96 models ),I do not hink this is a problem. I only plugged my combine once since then and that took about 30 minutes to inplug. I never used a hyd drive with reverser on the rotors, but the NH head reverser is the best on the market and will make up for any shortcomings unplugging the rootrs, which I think is a minor problem.