Yes with the HW SCT Pro you will need to lower the LVC to 2.6v to get the run time out of your battery. For some reason with the HW ESC alot of us run it with a low LVC setting. Just time ur runs and check how low the battery goes down each time.I can get 13mins from a 7200mah with a HW 4700/13T on a huge track if need to. Gearing can help too. You said 14T on motor. but what motor? HW 4700=12-13T. HW 4000 =14-15T would be a good start. Also, most run lowest punch and lowest timing.