I am unable to find exact information about servo tolerance.
For example very popular Futaba 3001 tend to have a lot of loose because ot the gear precision, yet when they run all is ok (besides that they are slow).
On the other hand Hitec HS-425 appears to me to have null loose.
Hitec HS-225 have little loose and is very fast servo, but in order to hold its position requires huge power.
Most digital servos tend to be either slow and fast, but have precise gears. Yet, they consume a lot of power to hold their position.
My question is: how to find a servo that will not be buzzing, and will hold its precision with minimal current draw, without any slop on control surfaces. Typical RC modeler budget.
Any ideas what is the rule of finding such servos? Even brand names give me bad surprises. I guess the solution would be with some specific gear ratio+tight gear tolerance, but how to define it? Hitec and Futaba preferred, I would like to find the rule rather than example.
Is the gear precision deteriorating with global economy progressing?
My fav looks HS-425BB, but I don;t know why so cheap for the purpose, and where is the catch thah other servos cannot get this precision at this price levels.