Can I replace Hitachi servos with some of this:
MINI SERVO + ACCESSORIES (9g) (MOTSER3)
Specifications
weight: 9g
power supply: 4.2V~6V
torque: 1.20kg/cm
speed: 0.12s/60?
dimensions: 24 x 12 x 23mm
MINI SERVO + ACCESSORIES (16g) (MOTSER1)
Specifications
weight: 16g
power supply: 6V
torque: 1.50kg/cm
speed: 0.16s/60?
dimensions: 28 x 13 x 28.5mm
MINI SERVO + ACCESSORIES (10g) (MOTSER2)
Specifications
weight: 10g
power supply: 4.2V~6V
torque: 1.20kg/cm
speed: 0.12s/60?
dimensions: 24.5 x 12 x 23.3mm