3d Printing Thermistor Assistance

I'm building a 3d printer The machine is a corexy design using the MKS Sbase v1.3 smoothieware clone controller. I've everything working correctly except for the hotend temperature. The hotend does not reach the desired temperature, it is always way low. The hotend is a J-head V6 E3D Hotend 1.75mm/0.4mm Nozzle Bowden type. The thermistor is NTC3950. The system power 24v. In the [login to view URL] file I've tried using the [login to view URL] setting, the Steinhart Hart [login to view URL] and the temperature_control.hotend.rt_curve setting. From experimenting with settings using a laser thermometer and ohm meter, the Steinhart Hart curve is very steep. I'm thinking I need to make a circuit give the Steinhart Hart more slope at higher temperatures but have no idea how to do this or what to try next.