mks777HV777A+ $145.00 Torque (6.0V): 29.5 kg-cm 409.7 oz-in Torque (7.4V): 36.5 kg-cm 506.9 ozAll bought new. These were all hv777 (not 777a+). I have stripped a pinion on one servo, stripped teeth on one, and sheared output sp on