Im new to this stuff but not to RC. I work in a hobby shop. Im geting into robot. I got the awd1 3 days ago. got it working with my DX7 spektrum radio. But when i go backwards the left side gos fast but the right side gos slow. When i go forward all the motors go the same speed. when i turn left the motors go the same speed when i turn right the 2 right motors go slow and the s left motors go fast. Here is what i got. If you can help thank you.
spektrum dx 7
sabertooth 2x12
4 geared motors 200rpm 12v
11.1 lipo