Hi I just got a Sanwa MT4 with RX-461 for my HPI Vorza. I have properly bind the radio to the RX-461 and I can steer but CANNOT throttle. I shaved off the default HPI servo to fit into the receiver which works perfect. I also bought a KO Propo 30106 servo which I will later shave.

I switched the ESC plug with the servo. So the servo went to throttle and ESC to steering and it worked BUT obviously the throttle on the radio acted as left/right and the steering on the radio did forward/backward which is obviously dumb.

How do I fix this issue? The Blur ESC just keeps blinking red. According to rogerhobbycenter castle ESC troubleshoot the red blinking light on the ESC means:
1) ESC not calibrated.
2) Radio on partial reverse or
3) ESC is on full reverse.

I checked and re-checked the radio and its all on ZERO. I mean there is a huge LCD on the radio that tells me that there isn't any input.

Any ideas? Am I doing something wrong?