My throttle servo of choice on my Nitro buggy and truggy. Shorty stature, light weight, and powerful, and fully programable. 
 
Speed：Speed: 0.07sec/60°(7.4V) / 0.08sec/60°(6.0V)
Torque：Torque: 30.0kgf・cm(7.4V) / 23.0kgf・cm(6.0V)
Dimensions/Weight：40.5×21.0×26.2mm/53g
FEATURES:
– Suitable for RC cars 1/10 scale on/off road and drifting.
– Programmable/HV Brushless Servo.
– Custom New high power Brushless Motor.
– Supports SR mode with T4PM/T7PX/T10PX
– Programmable and compatible with S.Bus and S.Bus2 systems.
– Can be connected to a PC using the CIU-2/-3 USB adapter sold separately.
– Upper/middle/bottom: Aluminum Case