Other than programming a return pump for feedmodes, does anyone vary their return pump for more less flow during the day? It seemed like a good idea before i got my DC pump to vary during the day just to vary flow in the tank but when the pump increases the level in my sump goes down causing my top off pump to turn on and then when the flow goes down my level is higher than ideal. I suppose it averages out but just wondering if anyone if using their return pump this way.