As far as I know "EZ" runs do not support brushless motors. I can tell you from experence that that ESC paired with a quality sensorless motor is as smooth as any sensored set up. But if you look over the specs of sensorless ESC's you'll see that many of them support sensored motors, but according to the manual it only states "sensorless".
This is cut & copied from the manual


1.5 Motor Supported: Sensorless Brushless Motor

No mention of sensorless. Im not 100% shure it wont work. Ive read that some sensorless ESCs do support sensored and some do not. But Ive read where people have ran Novaks with Ezruns. If theres a pause before it goes forward maybe switch your throttle in the other direction on your TX and switch 2 of the 3 motor wires. Actually that sounds like it could work. It has a few second stall before it goes in reverse. So try that.