Servo digital or analog

[tractioncontrol]

Hi guys.

just out of interest I'm currently looking at this servo HS-5625MG from Hitec to be used in the MBX6. Was having a look at this one which would be an analog one HS-985MG. The digital one MG has got 9.4 kg of steering power whilst the analog one is a coreless motor servo.

I could imagine that due to the offroad the servos need to be more robust as onroad is smooth and offroad is quite bumpy which could mean that I'd have a lot of corrections. So speed could be an important factor I guess.

What types of servos are you guys using and do you trust analog ones or should it be a digital one?

[MR Piraterc]

Personally i wouldnt touch Hitec servo's 

What you ideally want is

something around the 10 - 14 kg mark for the steering

and the 9kg mark on the throttle

I had a combination of the following running the 14kg servo on the steering

Team Associated XP DS1015 Hi Torque/High Speed Digital Servo

Available in two versions, Team Associated’s XP Digital Servos feature many enhancements that improve vehicle control and on-track performance. Equipped with an all-new ultra-precise metal gear and an advanced microprocessor, the XP Digital Servo provides precise outputs and ultra fast signal response. The state-of-the art aluminum heat sink mid case lowers operating temperatures for fade-free performance.

Features

Water and dust resistant
JR type connector
Aluminum heat sink case
Coreless motor
Equipped with ultraprecisemetal gears

Advancedmicroprocessor that processes signals faster and with
more precision

Advanced case design enhances structural integrity
Higher holding power with fewer angular errors
Superior torque output with low current consumption


Spec Check
Dim. (LxWxH)mm: 41.8 x 20.6 x 39.6
Weight (g/oz): 66 / 2.328
Torque (Kg-cm/oz-in) @ 6V: 14.5 / 201.4
Transit Time (sec/60°) @ 6V: 0.108
Voltage Range: 4.8 – 6V

Team Associated XP DS1313 Hi Performance Digital Servo

Spec Check
Dim. (LxWxH)mm: 41.8 x 20.6 x 39.6
Weight (g/oz): 66 / 2.328
Torque (Kg-cm/oz-in) @ 6V: 12.5 / 173.6
Transit Time (sec/60°) @ 6V: 0.13
Voltage Range: 4.8 – 6V

[slow coach]

just watch out for current drain on some servos