Just ordered a Power HD B4 HV Servo for my Slash 4x4 for $66.




Torque(6.0V): 21.0 kg-cm (291.6 oz/in)
Torque(7.4V): 25.0 kg-cm (347.1 oz/in)
Speed: 0.10 sec (6.0V) │ 0.085 sec (7.4V)
Operating Voltage：6.0 ~ 7.4 DC Volts
Weight: 60.0 g (2.12 oz)
Bearing Type：Ball Bearing x 2
Motor Type：Brushless Motor
Gear Type：Titanium & Alu
Operating Temperature：-20℃~60℃
Working frequence：1520μs / 333hz
Size：40.7 x 20.5 x 38.5 mm ( 1.6 x 0.80 x 1.51 in)


Will report back with updates.